diff -uNr dmd-0.133/dmd/html/d/acknowledgements.html dmd-0.134/dmd/html/d/acknowledgements.html --- dmd-0.133/dmd/html/d/acknowledgements.html 2005-09-18 11:39:24.000000000 +0200 +++ dmd-0.134/dmd/html/d/acknowledgements.html 2005-09-28 16:31:40.000000000 +0200 @@ -45,7 +45,7 @@ target="_top" title="Read/write comments and feedback">Comments
-Last update Sun Sep 18 2005 +Last update Wed Sep 28 2005
@@ -114,11 +114,13 @@

Acknowledgements

-The following people have contributed to the D language project; +The following (incomplete) list of people have contributed to the D language +project; with ideas, code, expertise, marketing, inspiration and moral support.

Kris Bell, + Don Clugston, Hauke Duden, Bruce Eckel, Eric Engstrom, @@ -135,10 +137,12 @@ Antonio Monteiro, Paul Nash, Pat Nelson, + Derek Parnell, Burton Radons, Tim Rentsch, Fabio Riccardi, Bob Taniguchi, + Bob W, John Whited, Matthew Wilson, Peter Zatloukal diff -uNr dmd-0.133/dmd/html/d/changelog.html dmd-0.134/dmd/html/d/changelog.html --- dmd-0.133/dmd/html/d/changelog.html 2005-09-24 19:33:04.000000000 +0200 +++ dmd-0.134/dmd/html/d/changelog.html 2005-09-28 16:44:18.000000000 +0200 @@ -45,7 +45,7 @@ target="_top" title="Read/write comments and feedback">Comments
-Last update Sat Sep 24 2005 +Last update Wed Sep 28 2005

@@ -115,6 +115,7 @@
+

+ What's New for + D 0.134 +

+ +Sep 28, 2005 +

+ +

New/Changed Features

+ + +

Ddoc

+ + +

Bugs Fixed

+ + +

What's New for D 0.133 diff -uNr dmd-0.133/dmd/html/d/ddoc.html dmd-0.134/dmd/html/d/ddoc.html --- dmd-0.133/dmd/html/d/ddoc.html 2005-09-24 19:33:26.000000000 +0200 +++ dmd-0.134/dmd/html/d/ddoc.html 2005-09-28 16:59:16.000000000 +0200 @@ -45,7 +45,7 @@ target="_top" title="Read/write comments and feedback">Comments
-Last update Sat Sep 24 2005 +Last update Wed Sep 28 2005

@@ -626,8 +626,9 @@ in section text it is replaced with NAME's corresponding replacment text. The replacement text is then recursively scanned for more macros. - If a macro is recursively encountered, only one level of recursion - is performed. + If a macro is recursively encountered, with no argument or with + the same argument text as the enclosing macro, it is replaced + with no text. Macro invocations that cut across replacement text boundaries are not expanded. If the macro name is undefined, the replacement text has no characters @@ -636,9 +637,13 @@ expanded, add an extra $ as in: $(NAME). The extra $ will be elided.

- Macros can have an argument. Any text from the end of the identifier - to the closing ')' is the argument. A $0 in the replacement text is + Macros can have arguments. Any text from the end of the identifier + to the closing ')' is the $0 argument. A $0 in the replacement text is replaced with the argument text. + If there are commas in the argument text, $1 will represent the + argument text up to the first comma, $2 from the first comma to + the second comma, etc., up to $9. + $+ represents the text from the first comma to the closing ')'. The argument text can contain nested parentheses, "" or '' strings, comments, or tags.

@@ -686,6 +691,8 @@ BIG = <big>$0</big> SMALL = <small>$0</small> BR = <br> +LINK = <a href="$0">$0</a> +LINK2 = <a href="$1">$+</a> RED = <font color=red>$0</font> BLUE = <font color=blue>$0</font> @@ -707,12 +714,38 @@ DDOC_DECL = $(DT $(BIG $0)) DDOC_DECL_DD = $(DD $0) DDOC_SECTIONS = $0 -DDOC_SUMMARY = $0 -DDOC_DESCRIPTION = $0 -DDOC_SECTION_H = $(P $(B $0)) -DDOC_SECTION = $0 +DDOC_SUMMARY = $0$(BR)$(BR) +DDOC_DESCRIPTION = $0$(BR)$(BR) +DDOC_AUTHORS = $(B Authors:)$(BR) + $0$(BR)$(BR) +DDOC_BUGS = $(RED BUGS:)$(BR) + $0$(BR)$(BR) +DDOC_COPYRIGHT = $(B Copyright:)$(BR) + $0$(BR)$(BR) +DDOC_DATE = $(B Date:)$(BR) + $0$(BR)$(BR) +DDOC_DEPRECATED = $(RED Deprecated:)$(BR) + $0$(BR)$(BR) +DDOC_EXAMPLES = $(B Examples:)$(BR) + $0$(BR)$(BR) +DDOC_HISTORY = $(B History:)$(BR) + $0$(BR)$(BR) +DDOC_LICENSE = $(B License:)$(BR) + $0$(BR)$(BR) +DDOC_RETURNS = $(B Returns:)$(BR) + $0$(BR)$(BR) +DDOC_SEE_ALSO = $(B See Also:)$(BR) + $0$(BR)$(BR) +DDOC_STANDARDS = $(B Standards:)$(BR) + $0$(BR)$(BR) +DDOC_THROWS = $(B Throws:)$(BR) + $0$(BR)$(BR) +DDOC_VERSION = $(B Version:)$(BR) + $0$(BR)$(BR) +DDOC_SECTION_H = $(B $0)$(BR)$(BR) +DDOC_SECTION = $0$(BR)$(BR) DDOC_MEMBERS = $(DL $0) -DDOC_PARAMS = $(P $(TABLE $0)) +DDOC_PARAMS = $(TABLE $0)$(BR)$(BR) DDOC_PARAM_ROW = $(TR $0) DDOC_PARAM_ID = $(TD $0) DDOC_PARAM_DESC = $(TD $0) @@ -748,6 +781,8 @@

BIG argument is one font size bigger
SMALL argument is one font size smaller
BR start new line +
LINK generate clickable link on argument +
LINK2 generate clickable link, first arg is address
RED argument is set to be red
BLUE argument is set to be blue
GREEN argument is set to be green @@ -796,11 +831,14 @@
DDOC_DESCRIPTION Highlighting of the description section. +
DDOC_AUTHORS .. DDOC_VERSION + Highlighting of the corresponding standard section. +
DDOC_SECTION_H - Highlighting of the section name. + Highlighting of the section name of a non-standard section.
DDOC_SECTION - Highlighting of the contents of a section. + Highlighting of the contents of a non-standard section.
DDOC_MEMBERS Highlighting of all the members of a class, struct, etc. diff -uNr dmd-0.133/dmd/html/d/phobos/object.html dmd-0.134/dmd/html/d/phobos/object.html --- dmd-0.133/dmd/html/d/phobos/object.html 2005-08-22 22:42:58.000000000 +0200 +++ dmd-0.134/dmd/html/d/phobos/object.html 2005-09-28 23:22:12.000000000 +0200 @@ -1,239 +1,318 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Digital Mars - The D Programming Language - object - - - - -www.digitalmars.com - -Home -| Search -| D -| Comments - -
-Last update Mon Aug 22 2005 -
- - - -
-
-
- - - - - -
-
-
D
-
Language
-
Phobos
-
Comparisons

- -object
-
- -std
- std.base64
- std.boxer
- std.compiler
- std.conv
- std.ctype
- std.date
- std.file
- std.format
- std.gc
- std.intrinsic
- std.math
- std.md5
- std.mmfile
- std.openrj
- std.outbuffer
- std.path
- std.process
- std.random
- std.recls
- std.regexp
- std.socket
- std.socketstream
- std.stdint
- std.stdio
- std.cstream
- std.stream
- std.string
- std.system
- std.thread
- std.uri
- std.utf
- std.zip
- std.zlib
-
-std.windows
-
-std.linux
-
-std.c
- std.c.stdio
-
-std.c.windows
-
-std.c.linux
-
- -		 - - -

object

- -This module is implicitly imported. - -
- -
alias size_t -
An unsigned integral type large enough to span the memory - space. Use for array indices and pointer offsets for maximal portability - to architectures that have different memory address ranges. - This is analogous to C's size_t. -

- -

alias ptrdiff_t -
A signed integral type large enough to span the memory - space. Use for pointer differences and for size_t - differences for maximal portability - to architectures that have different memory address ranges. - This is analogous to C's ptrdiff_t. -

- -

int printf(char* format, ...); -
C's printf function. -

- -

class Object -
All class objects in D inherit from Object. -

-

-
char[] toString() -
Convert Object to a human readable string. -

- -

uint toHash() -
Compute hash function for Object. -

- -

int opCmp(Object obj) -
Compare with another Object obj. Returns: -
-
<0 for (this < obj) -
=0 for (this == obj) -
>0 for (this > obj) -
-

- -

int opEquals(Object obj) -
Returns !=0 if this object does have the same - contents as obj. -

-

- -
class ClassInfo -
Runtime type information about a class. - Can be retrieved for any class type or instance by using - the .classinfo property. -

- -

class TypeInfo -
Runtime type information about a type. - Can be retrieved for any type using a - TypeidExpression. -

- -

class Exception -
All recoverable exceptions should be derived from class - Exception. -

-

-
this(char[] msg) -
Constructor; msg is a descriptive message - for the exception. -
-

- -

class Error -
All irrecoverable exceptions should be derived from class - Error. -

-

-
this(char[] msg) -
Constructor; msg is a descriptive message - for the error. -
-

- -

- - -
-

Feedback and Comments

- - Add feedback and comments regarding this - page. - -
-Copyright © 1999-2005 by Digital Mars, All Rights Reserved

- - - - - - - - - - + + + + + + + +Digital Mars - The D Programming Language - object + + + + +www.digitalmars.com + +Home +| Search +| D + +| Comments + +
+Last update Wed Sep 28 23:22:10 2005 + +

+ + + +
+
+
+ + + + + +
+
+
D
+
Language
+
Phobos
+
Comparisons

+ +object
+
+ +std
+ std.base64
+ std.boxer
+ std.compiler
+ std.conv
+ std.ctype
+ std.date
+ std.file
+ std.format
+ std.gc
+ std.intrinsic
+ std.math
+ std.md5
+ std.mmfile
+ std.openrj
+ std.outbuffer
+ std.path
+ std.process
+ std.random
+ std.recls
+ std.regexp
+ std.socket
+ std.socketstream
+ std.stdint
+ std.stdio
+ std.cstream
+ std.stream
+ std.string
+ std.system
+ std.thread
+ std.uri
+ std.utf
+ std.zip
+ std.zlib
+
+std.windows
+
+std.linux
+
+std.c
+ std.c.stdio
+
+std.c.windows
+
+std.c.linux
+
+ +		 + + +

object

+ +
+ +Forms the symbols available to all D programs. Includes + Object, which is the root of the class object heirarchy. +

+This module is implicitly imported. +

+ +
alias bool; +
+
Standard boolean type. Implemented as a bit type. +

+ +
+
class Object; +
+
All D class objects inherit from Object. + +

+ +
char[] toString(); +
+
Convert Object to a human readable string. + +

+ +
+
uint toHash(); +
+
Compute hash function for Object. + +

+ +
+
int opCmp(Object o); +
+
Compare with another Object obj. +

+Returns:
+ + + +
this < obj < 0
this == obj 0
this > obj > 0
+ +

+ +
+
int opEquals(Object o); +
+
Returns !=0 if this object does have the same contents as obj. + +

+ +
+
+
+
struct Interface; +
+
Information about an interface. + +

+ +
ClassInfo classinfo; +
+
.classinfo for this interface +

+ +
+
+
+
class ClassInfo; +
+
Runtime type information about a class. Can be retrieved for any class type + or instance by using the .classinfo property. + +

+ +
byte[] init; +
+
class static initializer + (init.length gives size in bytes of class) + +

+ +
+
char[] name; +
+
class name +

+ +
+
void*[] vtbl; +
+
virtual function pointer table +

+ +
+
Interface [] interfaces; +
+
interfaces this class implements +

+ +
+
ClassInfo base; +
+
base class +

+ +
+
+
+
class TypeInfo; +
+
Runtime type information about a type. + Can be retrieved for any type using a + TypeidExpression. + +

+ +
uint getHash(void* p); +
+
Returns a hash of the instance of a type. +

+ +
+
int equals(void* p1, void* p2); +
+
Compares two instances for equality. +

+ +
+
int compare(void* p1, void* p2); +
+
Compares two instances for <, ==, or >. +

+ +
+
uint tsize(); +
+
Returns size of the type. +

+ +
+
void swap(void* p1, void* p2); +
+
Swaps two instances of the type. +

+ +
+
+
+
class Exception; +
+
All recoverable exceptions should be derived from class Exception. + +

+ +
this(char[] msg); +
+
Constructor; msg is a descriptive message for the exception. + +

+ +
+
+
+
class Error: object.Exception; +
+
All irrecoverable exceptions should be derived from class Error. + +

+ +
this(char[] msg); +
+
Constructor; msg is a descriptive message for the exception. + +

+ +
+
+
+
+ +
+ + +
+

Feedback and Comments

+ + Add feedback and comments regarding this + page. + +
+Copyright © 1999-2005 by Digital Mars, All Rights Reserved
+Page generated by Ddoc. +

+ + + + + + + + + + + diff -uNr dmd-0.133/dmd/html/d/phobos/std_base64.html dmd-0.134/dmd/html/d/phobos/std_base64.html --- dmd-0.133/dmd/html/d/phobos/std_base64.html 2005-08-22 22:42:58.000000000 +0200 +++ dmd-0.134/dmd/html/d/phobos/std_base64.html 2005-09-28 23:22:12.000000000 +0200 @@ -1,158 +1,224 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Digital Mars - The D Programming Language - std.base64 - - - - -www.digitalmars.com - -Home -| Search -| D -| Comments - -
-Last update Mon Aug 22 2005 -

- - - -
-
-
- - - - - -
-
-
D
-
Language
-
Phobos
-
Comparisons

- -object
-
- -std
- std.base64
- std.boxer
- std.compiler
- std.conv
- std.ctype
- std.date
- std.file
- std.format
- std.gc
- std.intrinsic
- std.math
- std.md5
- std.mmfile
- std.openrj
- std.outbuffer
- std.path
- std.process
- std.random
- std.recls
- std.regexp
- std.socket
- std.socketstream
- std.stdint
- std.stdio
- std.cstream
- std.stream
- std.string
- std.system
- std.thread
- std.uri
- std.utf
- std.zip
- std.zlib
-
-std.windows
-
-std.linux
-
-std.c
- std.c.stdio
-
-std.c.windows
-
-std.c.linux
-
- -		 - - -

std.base64

- - -Encodes/decodes base64 data. - - -
-

Feedback and Comments

- - Add feedback and comments regarding this - page. - -
-Copyright © 1999-2005 by Digital Mars, All Rights Reserved

- - - - - - - - - - - - + + + + + + + +Digital Mars - The D Programming Language - std.base64 + + + + +www.digitalmars.com + +Home +| Search +| D + +| Comments + +
+Last update Wed Sep 28 23:22:10 2005 + +

+ + + +
+
+
+ + + + + +
+
+
D
+
Language
+
Phobos
+
Comparisons

+ +object
+
+ +std
+ std.base64
+ std.boxer
+ std.compiler
+ std.conv
+ std.ctype
+ std.date
+ std.file
+ std.format
+ std.gc
+ std.intrinsic
+ std.math
+ std.md5
+ std.mmfile
+ std.openrj
+ std.outbuffer
+ std.path
+ std.process
+ std.random
+ std.recls
+ std.regexp
+ std.socket
+ std.socketstream
+ std.stdint
+ std.stdio
+ std.cstream
+ std.stream
+ std.string
+ std.system
+ std.thread
+ std.uri
+ std.utf
+ std.zip
+ std.zlib
+
+std.windows
+
+std.linux
+
+std.c
+ std.c.stdio
+
+std.c.windows
+
+std.c.linux
+
+ +		 + + +

std.base64

+ +
+ +Encodes/decodes MIME base64 data. +

+References:

+Wikipedia Base64
+ RFC 2045
+ +

+ +
class Base64Exception: object.Exception; +
+


+
+
+
class Base64CharException: std.base64.Base64Exception; +
+


+
+
+
uint encodeLength(uint slen); +
+
Returns the number of bytes needed to encode a string of length slen. + +

+ +
+
char[] encode(char[] str, char[] buf); +
+
Encodes str[] and places the result in buf[]. +

+ + + + +
char[] strstring to encode
char[] bufdestination buffer, must be large enough for the result.


+Returns:
+slice into buf[] representing encoded result + +

+ +
+
char[] encode(char[] str); +
+
Encodes str[] and returns the result. + +

+ +
+
uint decodeLength(uint elen); +
+
Returns the number of bytes needed to decode an encoded string of this + length. + +

+ +
+
char[] decode(char[] estr, char[] buf); +
+
Decodes str[] and places the result in buf[]. +

+ + + + +
strstring to encode
char[] bufdestination buffer, must be large enough for the result.


+Returns:
+slice into buf[] representing encoded result +

+Errors:

+Throws Base64Exception on invalid base64 encoding in estr[]. + Throws Base64CharException on invalid base64 character in estr[]. + +

+ +
+
char[] decode(char[] estr); +
+
Decodes estr[] and returns the result. +

+Errors:

+Throws Base64Exception on invalid base64 encoding in estr[]. + Throws Base64CharException on invalid base64 character in estr[]. + +

+ +
+
+ +
+ + +
+

Feedback and Comments

+ + Add feedback and comments regarding this + page. + +
+Copyright © 1999-2005 by Digital Mars, All Rights Reserved
+Page generated by Ddoc. +

+ + + + + + + + + + + diff -uNr dmd-0.133/dmd/html/d/phobos/std_compiler.html dmd-0.134/dmd/html/d/phobos/std_compiler.html --- dmd-0.133/dmd/html/d/phobos/std_compiler.html 2005-08-22 22:42:58.000000000 +0200 +++ dmd-0.134/dmd/html/d/phobos/std_compiler.html 2005-09-28 23:22:12.000000000 +0200 @@ -1,190 +1,181 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Digital Mars - The D Programming Language - std.compiler - - - - -www.digitalmars.com - -Home -| Search -| D -| Comments - -
-Last update Mon Aug 22 2005 -

- - - -
-
-
- - - - - -
-
-
D
-
Language
-
Phobos
-
Comparisons

- -object
-
- -std
- std.base64
- std.boxer
- std.compiler
- std.conv
- std.ctype
- std.date
- std.file
- std.format
- std.gc
- std.intrinsic
- std.math
- std.md5
- std.mmfile
- std.openrj
- std.outbuffer
- std.path
- std.process
- std.random
- std.recls
- std.regexp
- std.socket
- std.socketstream
- std.stdint
- std.stdio
- std.cstream
- std.stream
- std.string
- std.system
- std.thread
- std.uri
- std.utf
- std.zip
- std.zlib
-
-std.windows
-
-std.linux
-
-std.c
- std.c.stdio
-
-std.c.windows
-
-std.c.linux
-
- -		 - - -

std.compiler

- - -
- -
char[] name; -
Vendor specific string naming the compiler, - for example: "Digital Mars D". -

- -

enum Vendor -
Master list of D compiler vendors. -
-
DigitalMars -
Digital Mars -
-

- -

Vendor vendor; -
Which vendor produced this compiler. -

- -

uint version_major; -
uint version_minor; -
The vendor specific version number, as in - version_major.version_minor. -

- -

uint D_major; -
uint D_minor; -
The version of the D Programming Language Specification - supported by the compiler. -

- -

- - -
-

Feedback and Comments

- - Add feedback and comments regarding this - page. - -
-Copyright © 1999-2005 by Digital Mars, All Rights Reserved

- - - - - - - - - - - - - + + + + + + + +Digital Mars - The D Programming Language - std.compiler + + + + +www.digitalmars.com + +Home +| Search +| D + +| Comments + +
+Last update Wed Sep 28 23:22:10 2005 + +

+ + + +
+
+
+ + + + + +
+
+
D
+
Language
+
Phobos
+
Comparisons

+ +object
+
+ +std
+ std.base64
+ std.boxer
+ std.compiler
+ std.conv
+ std.ctype
+ std.date
+ std.file
+ std.format
+ std.gc
+ std.intrinsic
+ std.math
+ std.md5
+ std.mmfile
+ std.openrj
+ std.outbuffer
+ std.path
+ std.process
+ std.random
+ std.recls
+ std.regexp
+ std.socket
+ std.socketstream
+ std.stdint
+ std.stdio
+ std.cstream
+ std.stream
+ std.string
+ std.system
+ std.thread
+ std.uri
+ std.utf
+ std.zip
+ std.zlib
+
+std.windows
+
+std.linux
+
+std.c
+ std.c.stdio
+
+std.c.windows
+
+std.c.linux
+
+ +		 + + +

std.compiler

+ +
+ + +
const char[] name; +
+
Vendor specific string naming the compiler, for example: "Digital Mars D". +

+ +
+
enum Vendor; +
+
Master list of D compiler vendors. +

+ +
DigitalMars
+
Digital Mars +

+ +
+
+
+
const Vendor vendor; +
+
Which vendor produced this compiler. +

+ +
+
const uint version_major; +
const uint version_minor; +
+
The vendor specific version number, as in + version_major.version_minor + +

+ +
+
const uint D_major; +
+
The version of the D Programming Language Specification + supported by the compiler. + +

+ +
+
+ +
+ + +
+

Feedback and Comments

+ + Add feedback and comments regarding this + page. + +
+Copyright © 1999-2005 by Digital Mars, All Rights Reserved
+Page generated by Ddoc. +

+ + + + + + + + + + + diff -uNr dmd-0.133/dmd/html/d/phobos/std_math.html dmd-0.134/dmd/html/d/phobos/std_math.html --- dmd-0.133/dmd/html/d/phobos/std_math.html 2005-09-24 15:33:42.000000000 +0200 +++ dmd-0.134/dmd/html/d/phobos/std_math.html 2005-09-28 23:22:10.000000000 +0200 @@ -15,22 +15,22 @@ - - + www.digitalmars.com Home | Search -| D +| D + | Comments
-Last update Sat Sep 24 15:33:41 2005 +Last update Wed Sep 28 23:22:09 2005

-
+
@@ -102,1115 +102,939 @@

std.math

- - -

- - -
-
const real E; -
-
-

e -

- - -
-
const real LOG2T; -
-
-

log210 -

- - -
-
const real LOG2E; -
-
-

log2e -

- - -
-
const real LOG2; -
-
-

log102 -

- - -
-
const real LOG10E; -
-
-

log10e -

- - -
-
const real LN2; -
-
-

ln 2 -

- - -
-
const real LN10; -
-
-

ln 10 -

- - -
-
const real PI; -
-
-

π -

- - -
-
const real PI_2; -
-
-

π / 2 -

- - -
-
const real PI_4; -
-
-

π / 4 -

- - -
-
const real M_1_PI; -
-
-

1 / π -

- - -
-
const real M_2_PI; -
-
-

2 / π -

- - -
-
const real M_2_SQRTPI; -
-
-

2 / √π -

- - -
-
const real SQRT2; -
-
-

√2 -

- - -
-
const real SQRT1_2; -
-
-

√½ -

- - -
-
real cos(real x); -
-
-

Returns cosine of x. x is in radians. -

- -

- - - - - -
Special Values
x cos( x) invalid?
NAN NAN yes
±∞ NAN yes
- -

- - -
-
real sin(real x); -
-
-

Returns sine of x. x is in radians. -

- -

- - -
Special Values
x sin( x) invalid? -
NAN NAN yes -
±0.0 ±0.0 no -
±∞ NAN yes -
- -

- - -
-
real tan(real x); -
-
-

Returns tangent of x. x is in radians. -

- -

- - -
Special Values
x tan( x) invalid? -
NAN NAN yes -
±0.0 ±0.0 no -
±∞ NAN yes -
- -

- - -
-
real acos(real x); -
-
-

Calculates the arc cosine of x, - returning a value ranging from -π/2 to π/2. -

- -

- - -
Special Values
x acos( x) invalid? -
>1.0 NAN yes -
<-1.0 NAN yes -
NAN NAN yes -
- -

- - -
-
real asin(real x); -
-
-

Calculates the arc sine of x, - returning a value ranging from -π/2 to π/2. -

- -

- - -
Special Values
x asin( x) invalid? -
±0.0 ±0.0 no -
>1.0 NAN yes -
<-1.0 NAN yes -
- -

- - -
-
real atan(real x); -
-
-

Calculates the arc tangent of x, - returning a value ranging from -π/2 to π/2. -

- -

- - -
Special Values
x atan( x) invalid? -
±0.0 ±0.0 no -
±∞ NAN yes -
- -

- - -
-
real atan2(real x,real y); -
-
-

Calculates the arc tangent of y / x, - returning a value ranging from -π/2 to π/2. -

- -

- - -
Special Values
x y atan( x, y) -
NAN anything NAN -
anything NAN NAN -
±0.0 > 0.0 ±0.0 -
±0.0 ±0.0 ±0.0 -
±0.0 < 0.0 ±π -
±0.0 -0.0 ±π -
> 0.0 ±0.0 π/2 -
< 0.0 ±0.0 π/2 -
> 0.0 ∞ ±0.0 -
±∞ anything ±π/2 -
> 0.0 -∞ ±π -
±∞ ∞ ±π/4 -
±∞ -∞ ±3π/4 -
- -

- - -
-
real cosh(real x); -
-
-

Calculates the hyperbolic cosine of x. -

- -

- - -
Special Values
x cosh( x) invalid? -
±∞ ±0.0 no -
- -

- - -
-
real sinh(real x); -
-
-

Calculates the hyperbolic sine of x. -

- -

- - -
Special Values
x sinh( x) invalid? -
±0.0 ±0.0 no -
±∞ ±∞ no -
- -

- - -
-
real tanh(real x); -
-
-

Calculates the hyperbolic tangent of x. -

- -

- - -
Special Values
x tanh( x) invalid? -
±0.0 ±0.0 no -
±∞ ±1.0 no -
- -

- - -
-
long rndtol(real x); -
-
-

Returns x rounded to a long value using the current rounding mode. - If the integer value of x is - greater than long.max, the result is - indeterminate. - -

- - -
-
realC rndtonl(real x); -
-
-

Returns x rounded to a long value using the FE_TONEAREST rounding mode. - If the integer value of x is - greater than long.max, the result is - indeterminate. - -

- - -
-
float sqrt(float x); -
double sqrt(double x); -
real sqrt(real x); -
-
-

Compute square root of x. -

- -

- - -
Special Values
x sqrt( x) invalid? -
-0.0 -0.0 no -
<0.0 NAN yes -
+∞ +∞ no -
- -

- - -
-
real exp(real x); -
-
-

Calculates e x. -

- -

- - -
Special Values
x exp( x) -
+∞ +∞ -
-∞ +0.0 -
- -

- - -
-
real exp2(real x); -
-
-

Calculates 2 x. -

- -

- - -
Special Values
x exp2( x) -
+∞ +∞ -
-∞ +0.0 -
- -

- - -
-
real expm1(real x); -
-
-

Calculates the value of the natural logarithm base (e) - raised to the power of x, minus 1. -

- -

For very small x, expm1( x) is more accurate - than exp( x)-1. -

-

- - - -
Special Values
x e x-1 -
±0.0 ±0.0 -
+∞ +∞ -
-∞ -1.0 -
- -

- - -
-
real frexp(real value,out int exp); -
-
-

Separate floating point value into significand and exponent. -

- -

- -

Returns:

Calculate and return x and exp such that - value =x*2 exp and - .5 <= |x| < 1.0
- x has same sign as value. -

-

- - - -
Special Values
value returns exp -
±0.0 ±0.0 0 -
+∞ +∞ int.max -
-∞ -∞ int.min -
±NAN ±NAN int.min -
- -

- - -
-
int ilogb(real x); -
-
-

Extracts the exponent of x as a signed integral value. -

- -

If x is not a special value, the result is the same as - cast(int)logb( x). -

-

- - - -
Special Values
x ilogb( x) Range error? -
0 FP_ILOGB0 yes -
±∞ +∞ no -
NAN FP_ILOGBNAN no -
- -

- - -
-
real ldexp(real n,int exp); -
-
-

Compute n * 2 exp -

- -

References:

frexp - -

- - -
-
real log(real x); -
-
-

Calculate the natural logarithm of x. -

- -

- - -
Special Values
x log( x) divide by 0? invalid? -
±0.0 -∞ yes no -
< 0.0 NAN no yes -
+∞ +∞ no no -
- -

- - -
-
real log10(real x); -
-
-

Calculate the base-10 logarithm of x. -

- -

- - -
Special Values
x log10( x) divide by 0? invalid? -
±0.0 -∞ yes no -
< 0.0 NAN no yes -
+∞ +∞ no no -
- -

- - -
-
real log1p(real x); -
-
-

Calculates the natural logarithm of 1 + x. -

- -

For very small x, log1p( x) will be more accurate than - log(1 + x). -

-

- - - -
Special Values
x log1p( x) divide by 0? invalid? -
±0.0 ±0.0 no no -
-1.0 -∞ yes no -
<-1.0 NAN no yes -
+∞ -∞ no no -
- -

- - -
-
real log2(real x); -
-
-

Calculates the base-2 logarithm of x: - log2 x -

- -

- - -
Special Values
x log2( x) divide by 0? invalid? -
±0.0 -∞ yes no -
< 0.0 NAN no yes -
+∞ +∞ no no -
- -

- - -
-
real logb(real x); -
-
-

Extracts the exponent of x as a signed integral value. -

- -

If x is subnormal, it is treated as if it were normalized. - For a positive, finite x: -

-

- 

-	1 <=   x * FLT_RADIX-  logb(  x) < FLT_RADIX
-
-

-

- - - -
Special Values
x logb( x) Divide by 0? -
±∞ +∞ no -
±0.0 -∞ yes -
- -

- - -
-
real modf(real x,inout real y); -
-
-

Calculates the remainder from the calculation x/ y. -

- -

Returns:

The value of x - i * y, where i is the number of times that y can - be completely subtracted from x. The result has the same sign as x. -

-

- - - -
Special Values
x y modf( x, y) invalid? -
±0.0 not 0.0 ±0.0 no -
±∞ anything NAN yes -
anything ±0.0 NAN yes -
!=±∞ ±∞ x no -
- -

- - -
-
real scalbn(real x,int n); -
-
-

Efficiently calculates x * 2 n. -

- -

scalbn handles underflow and overflow in - the same fashion as the basic arithmetic operators. -

-

- - - -
Special Values
x scalb( x) -
±∞ ±∞ -
±0.0 ±0.0 -
- -

- - -
-
real cbrt(real x); -
-
-

Calculates the cube root x. -

- -

- - -
Special Values
x cbrt( x) invalid? -
±0.0 ±0.0 no -
NAN NAN yes -
±∞ ±∞ no -
- -

- - -
-
real fabs(real x); -
-
-

Returns | x| -

- -

- - -
Special Values
x fabs( x) -
±0.0 +0.0 -
±∞ +∞ -
- -

- - -
-
real hypot(real x,real y); -
-
-

Calculates the length of the - hypotenuse of a right-angled triangle with sides of length x and y. - The hypotenuse is the value of the square root of - the sums of the squares of x and y: -

- -

sqrt( x² + y²) -

-

- Note that hypot( x, y), hypot( y, x) and - hypot( x, - y) are equivalent. -

-

- - - -
Special Values
x y hypot( x, y) invalid? -
x ±0.0 | x| no -
±∞ y +∞ no -
±∞ NAN +∞ no -
- -

- - -
-
real erf(real x); -
-
-

Returns the error function of x. -

- -

error function - -

- - -
-
real erfc(real x); -
-
-

Returns the complementary error function of x, which is 1 - erf( x). -

- -

complementary error function - -

- - -
-
real lgamma(real x); -
-
-

Calculates ln |Γ( x)| - -

- - -
-
real tgamma(real x); -
-
-

Calculates the gamma function Γ( x) - -

- - -
-
real ceil(real x); -
-
-

Returns the value of x rounded upward to the next integer - (toward positive infinity). - -

- - -
-
real floor(real x); -
-
-

Returns the value of x rounded downward to the next integer - (toward negative infinity). - -

- - -
-
real nearbyint(real x); -
-
-

Rounds x to the nearest integer value, using the current rounding - mode. -

- -

Unlike the rint functions, nearbyint does not raise the - FE_INEXACT exception. - -

- - -
-
real rint(real x); -
-
-

Rounds x to the nearest integer value, using the current rounding - mode. - If the return value is not equal to x, the FE_INEXACT - exception is raised. - nearbyint performs - the same operation, but does not set the FE_INEXACT exception. - -

- - -
-
long lrint(real x); -
-
-

Rounds x to the nearest integer value, using the current rounding - mode. - -

- - -
-
real round(real x); -
-
-

Return the value of x rounded to the nearest integer. - If the fractional part of x is exactly 0.5, the return value is rounded to - the even integer. - -

- - -
-
long lround(real x); -
-
-

Return the value of x rounded to the nearest integer. -

- -

If the fractional part of x is exactly 0.5, the return value is rounded - away from zero. - -

- - -
-
real trunc(real x); -
-
-

Returns the integer portion of x, dropping the fractional portion. -

- -

This is also know as "chop" rounding. - -

- - -
-
real remainder(real x,real y); -
real remquo(real x,real y,out int n); -
-
-

Calculate the remainder x REM y, following IEC 60559. -

- -

REM is the value of x - y * n, where n is the integer nearest the exact - value of x / y. - If |n - x / y| == 0.5, n is even. - If the result is zero, it has the same sign as x. - Otherwise, the sign of the result is the sign of x / y. - Precision mode has no affect on the remainder functions. -

-

- remquo returns n in the parameter n. -

-

- - - -
Special Values
x y remainder( x, y) n invalid? -
±0.0 not 0.0 ±0.0 0.0 no -
±∞ anything NAN ? yes -
anything ±0.0 NAN ? yes -
!= ±∞ ±∞ x ? no -
- -

- - -
-
int isnan(real e); -
-
-

Returns !=0 if e is a NaN. - -

- - -
-
int isfinite(real e); -
-
-

Returns !=0 if e is finite. - -

- - -
-
int isnormal(float x); -
int isnormal(double d); -
int isnormal(real e); -
-
-

Returns !=0 if x is normalized. - -

- - -
-
int issubnormal(float f); -
int issubnormal(double d); -
int issubnormal(real e); -
-
-

Is number subnormal? (Also called "denormal".) - Subnormals have a 0 exponent and a 0 most significant mantissa bit. - -

- - -
-
int isinf(real e); -
-
-

Return !=0 if e is ±∞. - -

- - -
-
int signbit(real e); -
-
-

Return 1 if sign bit of e is set, 0 if not. - -

- - -
-
real copysign(real to,real from); -
-
-

Return a value composed of to with from's sign bit. - -

- - -
-
real nan(char[] tagp); -
-
-

Creates a quiet NAN with the information from tagp[] embedded in it. - -

- - -
-
real nextafter(real x,real y); -
-
-

Calculates the next representable value after x in the direction of y. -

- -

If y > x, the result will be the next largest floating-point value; - if y < x, the result will be the next smallest value. - If x == y, the result is y. - The FE_INEXACT and FE_OVERFLOW exceptions will be raised if x is finite and - the function result is infinite. The FE_INEXACT and FE_UNDERFLOW - exceptions will be raised if the function value is subnormal, and x is - not equal to y. - -

- - -
-
real fdim(real x,real y); -
-
-

Returns the positive difference between x and y. -

- -

Returns:

-
x, y fdim( x, y) -
x > y x - y -
x <= y +0.0 -
- -

- - -
-
real fmax(real x,real y); -
-
-

Returns the larger of x and y. - -

- - -
-
real fmin(real x,real y); -
-
-

Returns the smaller of x and y. - -

- - -
-
real fma(real x,real y,real z); -
-
-

Returns ( x * y) + z, rounding only once according to the - current rounding mode. - -

- - -
-
real pow(real x,uint n); -
real pow(real x,int n); -
-
-

Fast integral powers. - -

- - -
-
real pow(real x,real y); -
-
-

Calculates x y. -

- -

- - - - - - - - - - - - - - - - - - - - -
Special Values
x y pow( x, y) div 0 invalid? -
anything ±0.0 1.0 no no -
| x| > 1 +∞ +∞ no no -
| x| < 1 +∞ +0.0 no no -
| x| > 1 -∞ +0.0 no no -
| x| < 1 -∞ +∞ no no -
+∞ > 0.0 +∞ no no -
+∞ < 0.0 +0.0 no no -
-∞ odd integer > 0.0 -∞ no no -
-∞ > 0.0, not odd integer +∞ no no -
-∞ odd integer < 0.0 -0.0 no no -
-∞ < 0.0, not odd integer +0.0 no no -
±1.0 ±∞ NAN no yes -
< 0.0 finite, nonintegral NAN no yes -
±0.0 odd integer < 0.0 ±∞ yes no -
±0.0 < 0.0, not odd integer +∞ yes no -
±0.0 odd integer > 0.0 ±0.0 no no -
±0.0 > 0.0, not odd integer +0.0 no no -
- -

- - -
-
int feqrel(real x,real y); -
-
-

To what precision is x equal to y? -

- -

- -

Returns:

the number of mantissa bits which are equal in x and y. - eg, 0x1.F8p+60 and 0x1.F1p+60 are equal to 5 bits of precision. -

-

- - - -
Special Values
x y feqrel( x, y) -
x x real.mant_dig -
x >= 2* x 0 -
x <= x/2 0 -
NAN any 0 -
any NAN 0 -
- -

- - -
-
+ + +
const real E; +
+
e +

+ +
+
const real LOG2T; +
+
log210 +

+ +
+
const real LOG2E; +
+
log2e +

+ +
+
const real LOG2; +
+
log102 +

+ +
+
const real LOG10E; +
+
log10e +

+ +
+
const real LN2; +
+
ln 2 +

+ +
+
const real LN10; +
+
ln 10 +

+ +
+
const real PI; +
+
π +

+ +
+
const real PI_2; +
+
π / 2 +

+ +
+
const real PI_4; +
+
π / 4 +

+ +
+
const real M_1_PI; +
+
1 / π +

+ +
+
const real M_2_PI; +
+
2 / π +

+ +
+
const real M_2_SQRTPI; +
+
2 / √π +

+ +
+
const real SQRT2; +
+
√2 +

+ +
+
const real SQRT1_2; +
+
√½ +

+ +
+
real cos(real x); +
+
Returns cosine of x. x is in radians. +

+ + + + + +
Special Values
x cos(x) invalid?
NAN + NAN + yes
±∞ NAN + yes
+ +

+ +
+
real sin(real x); +
+
Returns sine of x. x is in radians. +

+ + +
Special Values
x sin(x) invalid? +
NAN + NAN + yes +
±0.0 ±0.0 no +
±∞ NAN + yes +
+ +

+ +
+
real tan(real x); +
+
Returns tangent of x. x is in radians. +

+ + +
Special Values
x tan(x) invalid? +
NAN + NAN + yes +
±0.0 ±0.0 no +
±∞ NAN + yes +
+ +

+ +
+
real acos(real x); +
+
Calculates the arc cosine of x, + returning a value ranging from -π/2 to π/2. +

+ + +
Special Values
x acos(x) invalid? +
>1.0 NAN + yes +
<-1.0 NAN + yes +
NAN + NAN + yes +
+ +

+ +
+
real asin(real x); +
+
Calculates the arc sine of x, + returning a value ranging from -π/2 to π/2. +

+ + +
Special Values
x asin(x) invalid? +
±0.0 ±0.0 no +
>1.0 NAN + yes +
<-1.0 NAN + yes +
+ +

+ +
+
real atan(real x); +
+
Calculates the arc tangent of x, + returning a value ranging from -π/2 to π/2. +

+ + +
Special Values
x atan(x) invalid? +
±0.0 ±0.0 no +
±∞ NAN + yes +
+ +

+ +
+
real atan2(real x, real y); +
+
Calculates the arc tangent of y / x, + returning a value ranging from -π/2 to π/2. +

+ + +
Special Values
x y atan(x, y) +
NAN + anything NAN + +
anything NAN + NAN + +
±0.0 > 0.0 ±0.0 +
±0.0 ±0.0 ±0.0 +
±0.0 < 0.0 ±π +
±0.0 -0.0 ±π +
> 0.0 ±0.0 π/2 +
< 0.0 ±0.0 π/2 +
> 0.0 ∞ ±0.0 +
±∞ anything ±π/2 +
> 0.0 -∞ ±π +
±∞ ∞ ±π/4 +
±∞ -∞ ±3π/4 +
+ +

+ +
+
real cosh(real x); +
+
Calculates the hyperbolic cosine of x. +

+ + +
Special Values
x cosh(x) invalid? +
±∞ ±0.0 no +
+ +

+ +
+
real sinh(real x); +
+
Calculates the hyperbolic sine of x. +

+ + +
Special Values
x sinh(x) invalid? +
±0.0 ±0.0 no +
±∞ ±∞ no +
+ +

+ +
+
real tanh(real x); +
+
Calculates the hyperbolic tangent of x. +

+ + +
Special Values
x tanh(x) invalid? +
±0.0 ±0.0 no +
±∞ ±1.0 no +
+ +

+ +
+
long rndtol(real x); +
+
Returns x rounded to a long value using the current rounding mode. + If the integer value of x is + greater than long.max, the result is + indeterminate. + +

+ +
+
realC rndtonl(real x); +
+
Returns x rounded to a long value using the FE_TONEAREST rounding mode. + If the integer value of x is + greater than long.max, the result is + indeterminate. + +

+ +
+
float sqrt(float x); +
double sqrt(double x); +
real sqrt(real x); +
+
Compute square root of x. +

+ + +
Special Values
x sqrt(x) invalid? +
-0.0 -0.0 no +
<0.0 NAN + yes +
+∞ +∞ no +
+ +

+ +
+
real exp(real x); +
+
Calculates ex. +

+ + +
Special Values
x exp(x) +
+∞ +∞ +
-∞ +0.0 +
+ +

+ +
+
real exp2(real x); +
+
Calculates 2x. +

+ + +
Special Values
x exp2(x) +
+∞ +∞ +
-∞ +0.0 +
+ +

+ +
+
real expm1(real x); +
+
Calculates the value of the natural logarithm base (e) + raised to the power of x, minus 1. +

+For very small x, expm1(x) is more accurate + than exp(x)-1. +

+ + + +
Special Values
x ex-1 +
±0.0 ±0.0 +
+∞ +∞ +
-∞ -1.0 +
+ +

+ +
+
real frexp(real value, out int exp); +
+
Separate floating point value into significand and exponent. +

+Returns:
+Calculate and return x and exp such that + value =x*2exp and + .5 <= |x| < 1.0
+ x has same sign as value. +

+ + + +
Special Values
value returns exp +
±0.0 ±0.0 0 +
+∞ +∞ int.max +
-∞ -∞ int.min +
±NAN + ±NAN + int.min +
+ +

+ +
+
int ilogb(real x); +
+
Extracts the exponent of x as a signed integral value. +

+If x is not a special value, the result is the same as + cast(int)logb(x). +

+ + + +
Special Values
x ilogb(x) Range error? +
0 FP_ILOGB0 yes +
±∞ +∞ no +
NAN + FP_ILOGBNAN no +
+ +

+ +
+
real ldexp(real n, int exp); +
+
Compute n * 2exp +

+References:

+frexp + +

+ +
+
real log(real x); +
+
Calculate the natural logarithm of x. +

+ + +
Special Values
x log(x) divide by 0? invalid? +
±0.0 -∞ yes no +
< 0.0 NAN + no yes +
+∞ +∞ no no +
+ +

+ +
+
real log10(real x); +
+
Calculate the base-10 logarithm of x. +

+ + +
Special Values
x log10(x) divide by 0? invalid? +
±0.0 -∞ yes no +
< 0.0 NAN + no yes +
+∞ +∞ no no +
+ +

+ +
+
real log1p(real x); +
+
Calculates the natural logarithm of 1 + x. +

+For very small x, log1p(x) will be more accurate than + log(1 + x). +

+ + + +
Special Values
x log1p(x) divide by 0? invalid? +
±0.0 ±0.0 no no +
-1.0 -∞ yes no +
<-1.0 NAN + no yes +
+∞ -∞ no no +
+ +

+ +
+
real log2(real x); +
+
Calculates the base-2 logarithm of x: + log2x +

+ + +
Special Values
x log2(x) divide by 0? invalid? +
±0.0 -∞ yes no +
< 0.0 NAN + no yes +
+∞ +∞ no no +
+ +

+ +
+
real logb(real x); +
+
Extracts the exponent of x as a signed integral value. +

+If x is subnormal, it is treated as if it were normalized. + For a positive, finite x: +

+ + 
+	1 <= x * FLT_RADIX-logb(x) < FLT_RADIX
+
+

+ + + +
Special Values
x logb(x) Divide by 0? +
±∞ +∞ no +
±0.0 -∞ yes +
+ +

+ +
+
real modf(real x, inout real y); +
+
Calculates the remainder from the calculation x/y. +

+Returns:
+The value of x - i * y, where i is the number of times that y can + be completely subtracted from x. The result has the same sign as x. +

+ + + +
Special Values
x y modf(x, y) invalid? +
±0.0 not 0.0 ±0.0 no +
±∞ anything NAN + yes +
anything ±0.0 NAN + yes +
!=±∞ ±∞ x no +
+ +

+ +
+
real scalbn(real x, int n); +
+
Efficiently calculates x * 2n. +

+scalbn handles underflow and overflow in + the same fashion as the basic arithmetic operators. +

+ + + +
Special Values
x scalb(x) +
±∞ ±∞ +
±0.0 ±0.0 +
+ +

+ +
+
real cbrt(real x); +
+
Calculates the cube root x. +

+ + +
Special Values
x cbrt(x) invalid? +
±0.0 ±0.0 no +
NAN + NAN + yes +
±∞ ±∞ no +
+ +

+ +
+
real fabs(real x); +
+
Returns |x| +

+ + +
Special Values
x fabs(x) +
±0.0 +0.0 +
±∞ +∞ +
+ +

+ +
+
real hypot(real x, real y); +
+
Calculates the length of the + hypotenuse of a right-angled triangle with sides of length x and y. + The hypotenuse is the value of the square root of + the sums of the squares of x and y: +

+sqrt(x² + y²) +

+ + Note that hypot(x, y), hypot(y, x) and + hypot(x, -y) are equivalent. +

+ + + +
Special Values
x y hypot(x, y) invalid? +
x ±0.0 |x| no +
±∞ y +∞ no +
±∞ NAN + +∞ no +
+ +

+ +
+
real erf(real x); +
+
Returns the error function of x. +

+error function + +

+ +
+
real erfc(real x); +
+
Returns the complementary error function of x, which is 1 - erf(x). +

+complementary error function + +

+ +
+
real lgamma(real x); +
+
Calculates ln |Γ(x)| + +

+ +
+
real tgamma(real x); +
+
Calculates the gamma function Γ(x) + +

+ +
+
real ceil(real x); +
+
Returns the value of x rounded upward to the next integer + (toward positive infinity). + +

+ +
+
real floor(real x); +
+
Returns the value of x rounded downward to the next integer + (toward negative infinity). + +

+ +
+
real nearbyint(real x); +
+
Rounds x to the nearest integer value, using the current rounding + mode. +

+Unlike the rint functions, nearbyint does not raise the + FE_INEXACT exception. + +

+ +
+
real rint(real x); +
+
Rounds x to the nearest integer value, using the current rounding + mode. + If the return value is not equal to x, the FE_INEXACT + exception is raised. + nearbyint performs + the same operation, but does not set the FE_INEXACT exception. + +

+ +
+
long lrint(real x); +
+
Rounds x to the nearest integer value, using the current rounding + mode. + +

+ +
+
real round(real x); +
+
Return the value of x rounded to the nearest integer. + If the fractional part of x is exactly 0.5, the return value is rounded to + the even integer. + +

+ +
+
long lround(real x); +
+
Return the value of x rounded to the nearest integer. +

+If the fractional part of x is exactly 0.5, the return value is rounded + away from zero. + +

+ +
+
real trunc(real x); +
+
Returns the integer portion of x, dropping the fractional portion. +

+This is also know as "chop" rounding. + +

+ +
+
real remainder(real x, real y); +
real remquo(real x, real y, out int n); +
+
Calculate the remainder x REM y, following IEC 60559. +

+REM is the value of x - y * n, where n is the integer nearest the exact + value of x / y. + If |n - x / y| == 0.5, n is even. + If the result is zero, it has the same sign as x. + Otherwise, the sign of the result is the sign of x / y. + Precision mode has no affect on the remainder functions. +

+ + remquo returns n in the parameter n. +

+ + + +
Special Values
x y remainder(x, y) n invalid? +
±0.0 not 0.0 ±0.0 0.0 no +
±∞ anything NAN + ? yes +
anything ±0.0 NAN + ? yes +
!= ±∞ ±∞ x ? no +
+ +

+ +
+
int isnan(real e); +
+
Returns !=0 if e is a NaN. + +

+ +
+
int isfinite(real e); +
+
Returns !=0 if e is finite. + +

+ +
+
int isnormal(float x); +
int isnormal(double d); +
int isnormal(real e); +
+
Returns !=0 if x is normalized. + +

+ +
+
int issubnormal(float f); +
int issubnormal(double d); +
int issubnormal(real e); +
+
Is number subnormal? (Also called "denormal".) + Subnormals have a 0 exponent and a 0 most significant mantissa bit. + +

+ +
+
int isinf(real e); +
+
Return !=0 if e is ±∞. + +

+ +
+
int signbit(real e); +
+
Return 1 if sign bit of e is set, 0 if not. + +

+ +
+
real copysign(real to, real from); +
+
Return a value composed of to with from's sign bit. + +

+ +
+
real nan(char[] tagp); +
+
Creates a quiet NAN with the information from tagp[] embedded in it. + +

+ +
+
real nextafter(real x, real y); +
+
Calculates the next representable value after x in the direction of y. +

+If y > x, the result will be the next largest floating-point value; + if y < x, the result will be the next smallest value. + If x == y, the result is y. + The FE_INEXACT and FE_OVERFLOW exceptions will be raised if x is finite and + the function result is infinite. The FE_INEXACT and FE_UNDERFLOW + exceptions will be raised if the function value is subnormal, and x is + not equal to y. + +

+ +
+
real fdim(real x, real y); +
+
Returns the positive difference between x and y. +

+Returns:
+ +
x, y fdim(x, y) +
x > y x - y +
x <= y +0.0 +
+ +

+ +
+
real fmax(real x, real y); +
+
Returns the larger of x and y. + +

+ +
+
real fmin(real x, real y); +
+
Returns the smaller of x and y. + +

+ +
+
real fma(real x, real y, real z); +
+
Returns (x * y) + z, rounding only once according to the + current rounding mode. + +

+ +
+
real pow(real x, uint n); +
real pow(real x, int n); +
+
Fast integral powers. + +

+ +
+
real pow(real x, real y); +
+
Calculates xy. +

+ + + + + + + + + + + + + + + + + + + + +
Special Values
x y pow(x, y) div 0 invalid? +
anything ±0.0 1.0 no no +
|x| > 1 +∞ +∞ no no +
|x| < 1 +∞ +0.0 no no +
|x| > 1 -∞ +0.0 no no +
|x| < 1 -∞ +∞ no no +
+∞ > 0.0 +∞ no no +
+∞ < 0.0 +0.0 no no +
-∞ odd integer > 0.0 -∞ no no +
-∞ > 0.0, not odd integer +∞ no no +
-∞ odd integer < 0.0 -0.0 no no +
-∞ < 0.0, not odd integer +0.0 no no +
±1.0 ±∞ NAN + no yes +
< 0.0 finite, nonintegral NAN + no yes +
±0.0 odd integer < 0.0 ±∞ yes no +
±0.0 < 0.0, not odd integer +∞ yes no +
±0.0 odd integer > 0.0 ±0.0 no no +
±0.0 > 0.0, not odd integer +0.0 no no +
+ +

+ +
+
int feqrel(real x, real y); +
+
To what precision is x equal to y? +

+Returns:
+the number of mantissa bits which are equal in x and y. + eg, 0x1.F8p+60 and 0x1.F1p+60 are equal to 5 bits of precision. +

+ + + +
Special Values
x y feqrel(x, y) +
x x real.mant_dig +
x >= 2*x 0 +
x <= x/2 0 +
NAN + any 0 +
any NAN + 0 +
+ +

+ +
+
@@ -1222,7 +1046,9 @@ page.
-Copyright © 1999-2005 by Digital Mars, All Rights Reserved

+Copyright © 1999-2005 by Digital Mars, All Rights Reserved
+Page generated by Ddoc. +