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diff --git a/man3/fma.3 b/man3/fma.3 deleted file mode 100644 index c269e0cc9..000000000 --- a/man3/fma.3 +++ /dev/null @@ -1,170 +0,0 @@ -'\" t -.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de) -.\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk -.\" <mtk.manpages@gmail.com> -.\" -.\" SPDX-License-Identifier: GPL-1.0-or-later -.\" -.\" Modified 2004-11-15, Added further text on FLT_ROUNDS -.\" as suggested by AEB and Fabian Kreutz -.\" -.TH fma 3 (date) "Linux man-pages (unreleased)" -.SH NAME -fma, fmaf, fmal \- floating-point multiply and add -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <math.h> -.PP -.BI "double fma(double " x ", double " y ", double " z ); -.BI "float fmaf(float " x ", float " y ", float " z ); -.BI "long double fmal(long double " x ", long double " y ", long double " z ); -.fi -.PP -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.PP -.BR fma (), -.BR fmaf (), -.BR fmal (): -.nf - _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L -.fi -.SH DESCRIPTION -These functions compute -.IR x " * " y " + " z . -The result is rounded as one ternary operation according to the -current rounding mode (see -.BR fenv (3)). -.SH RETURN VALUE -These functions return the value of -.IR x " * " y " + " z , -rounded as one ternary operation. -.PP -If -.I x -or -.I y -is a NaN, a NaN is returned. -.PP -If -.I x -times -.I y -is an exact infinity, and -.I z -is an infinity with the opposite sign, -a domain error occurs, -and a NaN is returned. -.PP -.\" POSIX.1-2008 allows some possible differences for the following two -.\" domain error cases, but on Linux they are treated the same (AFAICS). -.\" Nevertheless, we'll mirror POSIX.1 and describe the two cases -.\" separately. -If one of -.I x -or -.I y -is an infinity, the other is 0, and -.I z -is not a NaN, -a domain error occurs, and -a NaN is returned. -.\" POSIX.1 says that a NaN or an implementation-defined value shall -.\" be returned for this case. -.PP -If one of -.I x -or -.I y -is an infinity, and the other is 0, and -.I z -is a NaN, -.\" POSIX.1 makes the domain error optional for this case. -a domain error occurs, and -a NaN is returned. -.PP -If -.I x -times -.I y -is not an infinity times zero (or vice versa), and -.I z -is a NaN, -a NaN is returned. -.PP -If the result overflows, -a range error occurs, and -an infinity with the correct sign is returned. -.PP -If the result underflows, -a range error occurs, and -a signed 0 is returned. -.SH ERRORS -See -.BR math_error (7) -for information on how to determine whether an error has occurred -when calling these functions. -.PP -The following errors can occur: -.TP -Domain error: \fIx\fP * \fIy\fP + \fIz\fP, \ -or \fIx\fP * \fIy\fP is invalid and \fIz\fP is not a NaN -.\" .I errno -.\" is set to -.\" .BR EDOM . -An invalid floating-point exception -.RB ( FE_INVALID ) -is raised. -.TP -Range error: result overflow -.\" .I errno -.\" is set to -.\" .BR ERANGE . -An overflow floating-point exception -.RB ( FE_OVERFLOW ) -is raised. -.TP -Range error: result underflow -.\" .I errno -.\" is set to -.\" .BR ERANGE . -An underflow floating-point exception -.RB ( FE_UNDERFLOW ) -is raised. -.PP -These functions do not set -.IR errno . -.\" FIXME . Is it intentional that these functions do not set errno? -.\" Bug raised: https://www.sourceware.org/bugzilla/show_bug.cgi?id=6801 -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.ad l -.nh -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.BR fma (), -.BR fmaf (), -.BR fmal () -T} Thread safety MT-Safe -.TE -.hy -.ad -.sp 1 -.SH STANDARDS -C11, POSIX.1-2008. -.SH HISTORY -glibc 2.1. -C99, POSIX.1-2001. -.SH SEE ALSO -.BR remainder (3), -.BR remquo (3) |