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1998-07-23  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/glob.c: Fix two problems with GLOB_DOOFFS.
	Reported by bwelling@anomaly.munge.com [PR libc/720].

	* sysdeps/libm-ieee754/k_standard.c: Return NAN for libm not in
	SVID more for gamma(x) with x interger <= 0.
	Reported by Stephen L Moshier <moshier@mediaone.net>.

	* math/libm-test.c (gamma_test): Add test for gamma(-1) and gamma(0).
	Correct test for SVID version of gamma.

	* sysdeps/libm-ieee754/w_gamma.c: Use correct matherr call in SVID
	emulation mode.
	* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
	* sysdeps/libm-ieee754/w_gammal.c: Likewise.

	* string/string.h: Don't use string function optimization for C++
	as long as we use macros.
This commit is contained in:
Ulrich Drepper 1998-07-23 14:59:16 +00:00
parent 6905087315
commit cc60175e8c
8 changed files with 115 additions and 41 deletions
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20
ChangeLog
View File

@ -1,3 +1,23 @@
1998-07-23 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/glob.c: Fix two problems with GLOB_DOOFFS.
Reported by bwelling@anomaly.munge.com [PR libc/720].
* sysdeps/libm-ieee754/k_standard.c: Return NAN for libm not in
SVID more for gamma(x) with x interger <= 0.
Reported by Stephen L Moshier <moshier@mediaone.net>.
* math/libm-test.c (gamma_test): Add test for gamma(-1) and gamma(0).
Correct test for SVID version of gamma.
* sysdeps/libm-ieee754/w_gamma.c: Use correct matherr call in SVID
emulation mode.
* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
* sysdeps/libm-ieee754/w_gammal.c: Likewise.
* string/string.h: Don't use string function optimization for C++
as long as we use macros.
1998-07-22 23:47 Ulrich Drepper <drepper@cygnus.com>
* posix/fnmatch.c: Fix completely broken range matching.

15
math/libm-test.c
View File

@ -1433,17 +1433,17 @@ gamma_test (void)
_LIB_VERSION = _SVID_;
check_isinfp ("gamma (+inf) == +inf", FUNC(gamma) (plus_infty));
check_isinfp_exc ("gamma (0) == +inf plus divide by zero exception",
FUNC(gamma) (0), DIVIDE_BY_ZERO_EXCEPTION);
check_exc ("gamma (0) == HUGE plus divide by zero exception",
FUNC(gamma) (0), HUGE, DIVIDE_BY_ZERO_EXCEPTION);
check_isinfp_exc ("gamma (x) == +inf plus divide by zero exception for integer x <= 0",
FUNC(gamma) (-3), DIVIDE_BY_ZERO_EXCEPTION);
check_exc ("gamma (x) == HUGE plus divide by zero exception for integer x <= 0",
FUNC(gamma) (-3), HUGE, DIVIDE_BY_ZERO_EXCEPTION);
check_isnan_exc ("gamma (-inf) == NaN plus invalid exception",
FUNC(gamma) (minus_infty), INVALID_EXCEPTION);
signgam = 0;
check ("gamma (1) == 0", FUNC(gamma) (1), 0);
check_int ("gamma (0) sets signgam to 1", signgam, 1);
check_int ("gamma (1) sets signgam to 1", signgam, 1);
signgam = 0;
check ("gamma (3) == M_LN2", FUNC(gamma) (3), M_LN2l);
@ -1486,6 +1486,11 @@ gamma_test (void)
1.29805533264755778568L, CHOOSE(0, 3e-16, 2e-7));
check ("gamma (1.2) == 0.91816...", FUNC(gamma) (1.2), 0.91816874239976061064L);
check_isnan_exc ("gamma (0.0) == NaN plus invalid exception",
FUNC(gamma) (0.0), INVALID_EXCEPTION);
check_isnan_exc ("gamma (-1.0) == NaN plus invalid exception",
FUNC(gamma) (-1.0), INVALID_EXCEPTION);
_LIB_VERSION = save_lib_version;
}

2
string/string.h
View File

@ -299,7 +299,7 @@ extern char *basename __P ((__const char *__filename));
#if defined __GNUC__ && __GNUC__ >= 2
# if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__
# if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ && !defined __cplusplus
/* When using GNU CC we provide some optimized versions of selected
functions from this header. There are two kinds of optimizations:

32
sysdeps/generic/glob.c
View File

@ -693,7 +693,7 @@ glob (pattern, flags, errfunc, pglob)
appending the results to PGLOB. */
for (i = 0; i < dirs.gl_pathc; ++i)
{
int oldcount;
int old_pathc;
#ifdef SHELL
{
@ -709,7 +709,7 @@ glob (pattern, flags, errfunc, pglob)
}
#endif /* SHELL. */
oldcount = pglob->gl_pathc;
old_pathc = pglob->gl_pathc;
status = glob_in_dir (filename, dirs.gl_pathv[i],
((flags | GLOB_APPEND)
& ~(GLOB_NOCHECK | GLOB_ERR)),
@ -727,8 +727,8 @@ glob (pattern, flags, errfunc, pglob)
/* Stick the directory on the front of each name. */
if (prefix_array (dirs.gl_pathv[i],
&pglob->gl_pathv[oldcount],
pglob->gl_pathc - oldcount))
&pglob->gl_pathv[old_pathc],
pglob->gl_pathc - old_pathc))
{
globfree (&dirs);
globfree (pglob);
@ -781,9 +781,14 @@ glob (pattern, flags, errfunc, pglob)
if (dirlen > 0)
{
/* Stick the directory on the front of each name. */
int ignore = oldcount;
if ((flags & GLOB_DOOFFS) && ignore < pglob->gl_offs)
ignore = pglob->gl_offs;
if (prefix_array (dirname,
&pglob->gl_pathv[oldcount],
pglob->gl_pathc - oldcount))
&pglob->gl_pathv[ignore],
pglob->gl_pathc - ignore))
{
globfree (pglob);
return GLOB_NOSPACE;
@ -815,10 +820,17 @@ glob (pattern, flags, errfunc, pglob)
}
if (!(flags & GLOB_NOSORT))
/* Sort the vector. */
qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
pglob->gl_pathc - oldcount,
sizeof (char *), collated_compare);
{
/* Sort the vector. */
int non_sort = oldcount;
if ((flags & GLOB_DOOFFS) && pglob->gl_offs > oldcount)
non_sort = pglob->gl_offs;
qsort ((__ptr_t) &pglob->gl_pathv[non_sort],
pglob->gl_pathc - non_sort,
sizeof (char *), collated_compare);
}
return 0;
}

3
sysdeps/libm-ieee754/k_standard.c
View File

@ -845,12 +845,13 @@ static double zero = 0.0; /* used as const */
exc.type = SING;
exc.name = type < 100 ? "gamma" : (type < 200
? "gammaf" : "gammal");
exc.retval = HUGE_VAL;
exc.retval = NAN;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
else if (!matherr(&exc)) {
if (_LIB_VERSION == _SVID_) {
(void) WRITE2("gamma: SING error\n", 18);
exc.retval = HUGE_VAL;
}
__set_errno (EDOM);
}

26
sysdeps/libm-ieee754/w_gamma.c
View File

@ -32,7 +32,18 @@ static char rcsid[] = "$NetBSD: w_gamma.c,v 1.7 1995/11/20 22:06:43 jtc Exp $";
double y;
#ifndef _IEEE_LIBM
if (_LIB_VERSION == _SVID_)
y = __ieee754_lgamma_r(x,&signgam);
{
y = __ieee754_lgamma_r(x,&signgam);
if(!__finite(y)&&__finite(x)) {
if(__floor(x)==x&&x<=(double)0.0)
/* lgamma pole */
return __kernel_standard(x,x,15);
else
/* lgamma overflow */
return __kernel_standard(x,x,14);
}
}
else
{
#endif
@ -43,14 +54,15 @@ static char rcsid[] = "$NetBSD: w_gamma.c,v 1.7 1995/11/20 22:06:43 jtc Exp $";
return y;
#else
if(_LIB_VERSION == _IEEE_) return y;
}
if(!__finite(y)&&__finite(x)) {
if(__floor(x)==x&&x<=0.0)
if(!__finite(y)&&__finite(x)) {
if(__floor(x)==x&&x<=0.0)
return __kernel_standard(x,x,41); /* gamma pole */
else
else
return __kernel_standard(x,x,40); /* gamma overflow */
} else
return y;
}
}
return y;
#endif
}
weak_alias (__gamma, gamma)

32
sysdeps/libm-ieee754/w_gammaf.c
View File

@ -30,7 +30,18 @@ static char rcsid[] = "$NetBSD: w_gammaf.c,v 1.4 1995/11/20 22:06:48 jtc Exp $";
float y;
#ifndef _IEEE_LIBM
if (_LIB_VERSION == _SVID_)
y = __ieee754_lgammaf_r(x,&signgam);
{
y = __ieee754_lgammaf_r(x,&signgam);
if(!__finitef(y)&&__finitef(x)) {
if(__floorf(x)==x&&x<=(float)0.0)
/* lgammaf pole */
return (float)__kernel_standard((double)x,(double)x,115);
else
/* lgammaf overflow */
return (float)__kernel_standard((double)x,(double)x,114);
}
}
else
{
#endif
@ -41,16 +52,17 @@ static char rcsid[] = "$NetBSD: w_gammaf.c,v 1.4 1995/11/20 22:06:48 jtc Exp $";
return y;
#else
if(_LIB_VERSION == _IEEE_) return y;
if(!__finitef(y)&&__finitef(x)) {
if(__floorf(x)==x&&x<=(float)0.0)
/* gammaf pole */
return (float)__kernel_standard((double)x,(double)x,141);
else
/* gammaf overflow */
return (float)__kernel_standard((double)x,(double)x,140);
}
}
if(!__finitef(y)&&__finitef(x)) {
if(__floorf(x)==x&&x<=(float)0.0)
/* gammaf pole */
return (float)__kernel_standard((double)x,(double)x,141);
else
/* gammaf overflow */
return (float)__kernel_standard((double)x,(double)x,140);
} else
return y;
return y;
#endif
}
weak_alias (__gammaf, gammaf)

26
sysdeps/libm-ieee754/w_gammal.c
View File

@ -35,7 +35,18 @@ static char rcsid[] = "$NetBSD: $";
long double y;
#ifndef _IEEE_LIBM
if (_LIB_VERSION == _SVID_)
y = __ieee754_lgammal_r(x,&signgam);
{
y = __ieee754_lgammal_r(x,&signgam);
if(!__finitel(y)&&__finitel(x)) {
if(__floorl(x)==x&&x<=(long double)0.0)
/* lgamma pole */
return (long double)__kernel_standard((double)x,(double)x,15);
else
/* lgamma overflow */
return (long double)__kernel_standard((double)x,(double)x,14);
}
}
else
{
#endif
@ -46,14 +57,15 @@ static char rcsid[] = "$NetBSD: $";
return y;
#else
if(_LIB_VERSION == _IEEE_) return y;
}
if(!__finitel(y)&&__finitel(x)) {
if(__floorl(x)==x&&x<=0.0)
if(!__finitel(y)&&__finitel(x)) {
if(__floorl(x)==x&&x<=0.0)
return __kernel_standard(x,x,241); /* gamma pole */
else
else
return __kernel_standard(x,x,240); /* gamma overflow */
} else
return y;
}
}
return y;
#endif
}
weak_alias (__gammal, gammal)