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diff --git a/man3/nextafter.3 b/man3/nextafter.3 deleted file mode 100644 index f691aacbf..000000000 --- a/man3/nextafter.3 +++ /dev/null @@ -1,203 +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 -.\" -.\" Based on glibc infopages -.\" -.TH nextafter 3 (date) "Linux man-pages (unreleased)" -.SH NAME -nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl \- -floating-point number manipulation -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <math.h> -.PP -.BI "double nextafter(double " x ", double " y ); -.BI "float nextafterf(float " x ", float " y ); -.BI "long double nextafterl(long double " x ", long double " y ); -.PP -.BI "double nexttoward(double " x ", long double " y ); -.BI "float nexttowardf(float " x ", long double " y ); -.BI "long double nexttowardl(long double " x ", long double " y ); -.fi -.PP -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.PP -.BR nextafter (): -.nf - _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L - || _XOPEN_SOURCE >= 500 -.\" || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.PP -.BR nextafterf (), -.BR nextafterl (): -.nf - _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.PP -.BR nexttoward (), -.BR nexttowardf (), -.BR nexttowardl (): -.nf - _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE - || _POSIX_C_SOURCE >= 200112L -.fi -.SH DESCRIPTION -The -.BR nextafter (), -.BR nextafterf (), -and -.BR nextafterl () -functions return the next representable floating-point value following -.I x -in the direction of -.IR y . -If -.I y -is less than -.IR x , -these functions will return the largest representable number less than -.IR x . -.PP -If -.I x -equals -.IR y , -the functions return -.IR y . -.PP -The -.BR nexttoward (), -.BR nexttowardf (), -and -.BR nexttowardl () -functions do the same as the corresponding -.BR nextafter () -functions, except that they have a -.I "long double" -second argument. -.SH RETURN VALUE -On success, -these functions return the next representable floating-point value after -.I x -in the direction of -.IR y . -.PP -If -.I x -equals -.IR y , -then -.I y -(cast to the same type as -.IR x ) -is returned. -.PP -If -.I x -or -.I y -is a NaN, -a NaN is returned. -.PP -If -.I x -is finite, -.\" e.g., DBL_MAX -and the result would overflow, -a range error occurs, -and the functions return -.BR HUGE_VAL , -.BR HUGE_VALF , -or -.BR HUGE_VALL , -respectively, with the correct mathematical sign. -.PP -If -.I x -is not equal to -.IR y , -and the correct function result would be subnormal, zero, or underflow, -a range error occurs, -and either the correct value (if it can be represented), -or 0.0, 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 -Range error: result overflow -.\" e.g., nextafter(DBL_MAX, HUGE_VAL); -.I errno -is set to -.BR ERANGE . -An overflow floating-point exception -.RB ( FE_OVERFLOW ) -is raised. -.TP -Range error: result is subnormal or underflows -.\" e.g., nextafter(DBL_MIN, 0.0); -.I errno -is set to -.BR ERANGE . -An underflow floating-point exception -.RB ( FE_UNDERFLOW ) -is raised. -.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 nextafter (), -.BR nextafterf (), -.BR nextafterl (), -.BR nexttoward (), -.BR nexttowardf (), -.BR nexttowardl () -T} Thread safety MT-Safe -.TE -.hy -.ad -.sp 1 -.SH STANDARDS -C11, POSIX.1-2008. -.PP -This function is defined in IEC 559 (and the appendix with -recommended functions in IEEE 754/IEEE 854). -.SH HISTORY -C99, POSIX.1-2001. -.SH BUGS -In glibc 2.5 and earlier, these functions do not raise an underflow -floating-point -.RB ( FE_UNDERFLOW ) -exception when an underflow occurs. -.PP -Before glibc 2.23 -.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6799 -these functions did not set -.IR errno . -.SH SEE ALSO -.BR nearbyint (3) |