diff options
Diffstat (limited to 'man3/scalb.3')
| -rw-r--r-- | man3/scalb.3 | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/man3/scalb.3 b/man3/scalb.3 deleted file mode 100644 index f99fd2d..0000000 --- a/man3/scalb.3 +++ /dev/null @@ -1,196 +0,0 @@ -'\" t -.\" Copyright 2004 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 scalb 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -scalb, scalbf, scalbl \- multiply floating-point number -by integral power of radix (OBSOLETE) -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <math.h> -.P -.BI "[[deprecated]] double scalb(double " x ", double " exp ); -.BI "[[deprecated]] float scalbf(float " x ", float " exp ); -.BI "[[deprecated]] long double scalbl(long double " x ", long double " exp ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR scalb (): -.nf - _XOPEN_SOURCE >= 500 -.\" || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.P -.BR scalbf (), -.BR scalbl (): -.nf - _XOPEN_SOURCE >= 600 - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.SH DESCRIPTION -These functions multiply their first argument -.I x -by -.B FLT_RADIX -(probably 2) -to the power of -.IR exp , -that is: -.P -.nf - x * FLT_RADIX ** exp -.fi -.P -The definition of -.B FLT_RADIX -can be obtained by including -.IR <float.h> . -.\" not in /usr/include but in a gcc lib -.SH RETURN VALUE -On success, these functions return -.I x -* -.B FLT_RADIX -** -.IR exp . -.P -If -.I x -or -.I exp -is a NaN, a NaN is returned. -.P -If -.I x -is positive infinity (negative infinity), -and -.I exp -is not negative infinity, -positive infinity (negative infinity) is returned. -.P -If -.I x -is +0 (\-0), and -.I exp -is not positive infinity, +0 (\-0) is returned. -.P -If -.I x -is zero, and -.I exp -is positive infinity, -a domain error occurs, and -a NaN is returned. -.P -If -.I x -is an infinity, -and -.I exp -is negative infinity, -a domain error occurs, and -a NaN is returned. -.P -If the result overflows, -a range error occurs, -and the functions return -.BR HUGE_VAL , -.BR HUGE_VALF , -or -.BR HUGE_VALL , -respectively, with a sign the same as -.IR x . -.P -If the result underflows, -a range error occurs, -and the functions return zero, with a sign the same as -.IR x . -.SH ERRORS -See -.BR math_error (7) -for information on how to determine whether an error has occurred -when calling these functions. -.P -The following errors can occur: -.TP -Domain error: \fIx\fP is 0, and \fIexp\fP is positive infinity, \ -or \fIx\fP is positive infinity and \fIexp\fP is negative infinity \ -and the other argument is not a NaN -.I errno -is set to -.BR EDOM . -An invalid floating-point exception -.RB ( FE_INVALID ) -is raised. -.TP -Range error, overflow -.I errno -is set to -.BR ERANGE . -An overflow floating-point exception -.RB ( FE_OVERFLOW ) -is raised. -.TP -Range error, underflow -.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). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR scalb (), -.BR scalbf (), -.BR scalbl () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -None. -.SH HISTORY -.TP -.BR scalb () -4.3BSD. -Obsolescent in POSIX.1-2001; -Removed in POSIX.1-2008, -recommending the use of -.BR scalbln (3), -.BR scalblnf (3), -or -.BR scalblnl (3) -instead. -.\" Looking at header files: scalbf() is present on the -.\" BSDs, Tru64, HP-UX 11, Irix 6.5; scalbl() is on HP-UX 11 and Tru64. -.SH BUGS -Before glibc 2.20, -.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6803 -.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6804 -these functions did not set -.I errno -for domain and range errors. -.SH SEE ALSO -.BR ldexp (3), -.BR scalbln (3) |