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Diffstat (limited to 'man3/rint.3')
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diff --git a/man3/rint.3 b/man3/rint.3 deleted file mode 100644 index 812d6ae..0000000 --- a/man3/rint.3 +++ /dev/null @@ -1,145 +0,0 @@ -'\" t -.\" Copyright 2001 Andries Brouwer <aeb@cwi.nl>. -.\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk -.\" <mtk.manpages@gmail.com> -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.TH rint 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -nearbyint, nearbyintf, nearbyintl, rint, rintf, rintl \- round -to nearest integer -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <math.h> -.P -.BI "double nearbyint(double " x ); -.BI "float nearbyintf(float " x ); -.BI "long double nearbyintl(long double " x ); -.P -.BI "double rint(double " x ); -.BI "float rintf(float " x ); -.BI "long double rintl(long double " x ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR nearbyint (), -.BR nearbyintf (), -.BR nearbyintl (): -.nf - _POSIX_C_SOURCE >= 200112L || _ISOC99_SOURCE -.fi -.P -.BR rint (): -.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 -.P -.BR rintf (), -.BR rintl (): -.nf - _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.SH DESCRIPTION -The -.BR nearbyint (), -.BR nearbyintf (), -and -.BR nearbyintl () -functions round their argument to an integer value in floating-point -format, using the current rounding direction (see -.BR fesetround (3)) -and without raising the -.I inexact -exception. -When the current rounding direction is to nearest, these -functions round halfway cases to the even integer in accordance with -IEEE-754. -.P -The -.BR rint (), -.BR rintf (), -and -.BR rintl () -functions do the same, but will raise the -.I inexact -exception -.RB ( FE_INEXACT , -checkable via -.BR fetestexcept (3)) -when the result differs in value from the argument. -.SH RETURN VALUE -These functions return the rounded integer value. -.P -If -.I x -is integral, +0, \-0, NaN, or infinite, -.I x -itself is returned. -.SH ERRORS -No errors occur. -POSIX.1-2001 documents a range error for overflows, but see NOTES. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR nearbyint (), -.BR nearbyintf (), -.BR nearbyintl (), -.BR rint (), -.BR rintf (), -.BR rintl () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -C11, POSIX.1-2008. -.SH HISTORY -C99, POSIX.1-2001. -.SH NOTES -SUSv2 and POSIX.1-2001 contain text about overflow (which might set -.I errno -to -.BR ERANGE , -or raise an -.B FE_OVERFLOW -exception). -In practice, the result cannot overflow on any current machine, -so this error-handling stuff is just nonsense. -(More precisely, overflow can happen only when the maximum value -of the exponent is smaller than the number of mantissa bits. -For the IEEE-754 standard 32-bit and 64-bit floating-point numbers -the maximum value of the exponent is 127 (respectively, 1023), -and the number of mantissa bits -including the implicit bit -is 24 (respectively, 53).) -.P -If you want to store the rounded value in an integer type, -you probably want to use one of the functions described in -.BR lrint (3) -instead. -.SH SEE ALSO -.BR ceil (3), -.BR floor (3), -.BR lrint (3), -.BR round (3), -.BR trunc (3) |