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10 Commits

Author SHA1 Message Date
Bruno Haible
9e7a6e9093 math: Provide FP_ILOGB0 and FP_ILOGBNAN. 
* lib/math.in.h (FP_ILOGB0, FP_ILOGBNAN): Define fallback.
* tests/test-math.c: Check that FP_ILOGB0, FP_ILOGBNAN are defined.
(main): Check their values.
* doc/posix-headers/math.texi: Mention the FP_ILOGB0, FP_ILOGBNAN
problem.
 2012-04-03 18:58:51 +02:00
Bruno Haible
830868381a math: Ensure HUGE_VAL, HUGE_VALF, HUGE_VALL are defined. 
* lib/math.in.h (HUGE_VAL, HUGE_VALF, HUGE_VALL): Define fallbacks.
* tests/test-math.c: Include macros.h. Check that HUGE_VAL, HUGE_VALF,
HUGE_VALL are defined.
(numeric_equald): Renamed from numeric_equal.
(numeric_equalf, numeric_equall): New functions.
(main): Check also HUGE_VALF, HUGE_VALL.
* modules/math-tests (Files): Add tests/macros.h.
* doc/posix-headers/math.texi: Document the problems with HUGE_VALF and
HUGE_VALL.
 2012-02-29 12:10:53 +01:00
Bruno Haible
8c66a845d5 Doc about floating-point and math API. 
* doc/posix-headers/float.texi: Mention problem with FLT_ROUNDS.
* doc/posix-headers/math.texi: Mention problem with math_errhandling.
 2011-11-07 00:22:31 +01:00
Bruno Haible
fddec5c132 float, math: Fix 'int' to 'long double' conversion on Linux/SPARC64. 
* m4/float_h.m4 (gl_FLOAT_H): Test conversion from 'int' to
'long double'. Set REPLACE_ITOLD.
* lib/float.in.h (_Qp_itoq, _gl_float_fix_itold): New declarations.
* lib/math.in.h (_Qp_itoq, _gl_math_fix_itold): New declarations.
* lib/itold.c: New file.
* modules/float (Files): Add lib/itold.c.
(configure.ac): When REPLACE_ITOLD is 1, arrange to compile itold.c.
(Makefile.am): Substitute REPLACE_ITOLD.
* modules/math (Depends-on): Add float.
(Makefile.am): Substitute REPLACE_ITOLD.
* doc/posix-headers/float.texi: Mention problem on Linux/SPARC64.
* doc/posix-headers/math.texi: Likewise.
* doc/posix-functions/logl.texi: Likewise.
 2011-09-30 21:07:43 +02:00
Bruno Haible
b14c9a8fe1 Update doc for POSIX:2008. 
* doc/posix-headers/*.texi [except ucontext.texi, sys_timeb.texi]:
Update URL of POSIX specification.
 2010-10-02 18:35:08 +02:00
Karl Berry
80fc442c21 avoid some overlong lines from posix urls, etc. 2010-08-13 11:50:58 -07:00
Eric Blake
833333f7ed Work around Solaris 10 math.h bug. 
* m4/math_h.m4 (gl_MATH_H): Check for bug.
(gl_MATH_H_DEFAULTS): Set up default.
* modules/math (Makefile.am): Replace new indicators.
* lib/math.in.h (NAN, HUGE_VAL): Provide replacements.
* tests/test-math.c (main): Test this.
* m4/strtod.m4 (gl_FUNC_STRTOD): Don't rely on HUGE_VAL.
* doc/posix-headers/math.texi (math.h): Mention bug.
Reported by Nelson H. F. Beebe and Jim Meyering.

Signed-off-by: Eric Blake <ebb9@byu.net>
 2008-04-12 07:28:35 -06:00
Bruno Haible
2ada70ab05 Refine documentation of NAN problem. 2008-04-02 03:30:52 +02:00
Eric Blake
06945b7c07 Guarantee a definition of NAN. 
* lib/math.in.h (NAN): Define if missing.
* tests/test-math.c (main): Test it.
* doc/posix-headers/math.texi (math.h): Document this.
* lib/isnan.c (rpl_isnand): Use it.
* tests/test-ceilf1.c (NaN): Delete, and use NAN instead.
* tests/test-floorf1.c (NaN): Likewise.
* tests/test-frexp.c (NaN): Likewise.
* tests/test-isnand.c (NaN): Likewise.
* tests/test-isnanf.c (NaN): Likewise.
* tests/test-round1.c (NaN): Likewise.
* tests/test-roundf1.c (NaN): Likewise.
* tests/test-snprintf-posix.h (NaN): Likewise.
* tests/test-sprintf-posix.h (NaN): Likewise.
* tests/test-trunc1.c (NaN): Likewise.
* tests/test-truncf1.c (NaN): Likewise.
* tests/test-vasnprintf-posix.c (NaN): Likewise.
* tests/test-vasprintf-posix.c (NaN): Likewise.
* modules/isnand-nolibm (Depends-on): Add math.
* modules/isnanf-nolibm (Depends-on): Likewise.
* modules/isnanl (Depends-on): Likewise.
* modules/isnanl-nolibm (Depends-on): Likewise.
* modules/snprintf-posix-tests (Depends-on): Likewise.
* modules/sprintf-posix-tests (Depends-on): Likewise.
* modules/vsnprintf-posix-tests (Depends-on): Likewise.
* modules/vsprintf-posix-tests (Depends-on): Likewise.
* modules/vasnprintf-posix-tests (Depends-on): Likewise.
* modules/vasprintf-posix-tests (Depends-on): Likewise.

Signed-off-by: Eric Blake <ebb9@byu.net>
 2008-03-31 21:06:57 -06:00
Bruno Haible
2b6c08c775 Rename two directories: headers -> posix-headers, functions -> posix-functions. 2008-01-20 00:09:59 +01:00