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Use a more portable replacement expression for -0.0L.

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This commit is contained in:
Bruno Haible
2008-10-08 02:05:26 +02:00
parent 61776a064d
commit ea0f5bf644
31 changed files with 190 additions and 75 deletions
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78
ChangeLog
View File

@@ -1,3 +1,81 @@
2008-10-07 Bruno Haible <bruno@clisp.org>
Use a more portable replacement expression for -0.0L.
* m4/signbit.m4 (gl_SIGNBIT_TEST_PROGRAM): Use -LDBL_MIN * LDBL_MIN
instead of -0.0L. Fix m4 quotation.
* tests/test-signbit.c: Include <float.h>.
(minus_zero): New variable.
(test_signbitl): Use minus_zero instead of -zero.
* modules/signbit-tests (Depends-on): Add float.
* tests/test-ceill.c: Include <float.h>.
(zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/ceill-tests (Depends-on): Add float.
* tests/test-floorl.c: Include <float.h>.
(zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/floorl-tests (Depends-on): Add float.
* tests/test-roundl.c: Include <float.h>.
(zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/roundl-tests (Depends-on): Add float.
* tests/test-truncl.c: Include <float.h>.
(zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/truncl-tests (Depends-on): Add float.
* tests/test-frexpl.c (zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/frexpl-tests (Depends-on): Add float.
* tests/test-isnan.c (zerol): Remove variable.
(minus_zerol): New variable.
(test_long_double): Use minus_zerol instead of -zerol.
* modules/isnan-tests (Depends-on): Add float.
* tests/test-isnanl.h (zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/isnanl-nolibm-tests (Depends-on): Add float.
* modules/isnanl-tests (Depends-on): Add float.
* tests/test-ldexpl.c (zero): Remove variable.
(minus_zero): New variable.
(main): Use minus_zero instead of -zero.
* modules/ldexpl-tests (Depends-on): Add float.
* tests/test-snprintf-posix.h (zerol): Remove variable.
(minus_zerol): New variable.
(test_function): Use minus_zerol instead of -zerol.
* modules/snprintf-posix-tests (Depends-on): Add float.
* modules/vsnprintf-posix-tests (Depends-on): Add float.
* tests/test-sprintf-posix.h (zerol): Remove variable.
(minus_zerol): New variable.
(test_function): Use minus_zerol instead of -zerol.
* modules/sprintf-posix-tests (Depends-on): Add float.
* modules/vsprintf-posix-tests (Depends-on): Add float.
* tests/test-vasnprintf-posix.c (zerol): Remove variable.
(minus_zerol): New variable.
(test_function): Use minus_zerol instead of -zerol.
* modules/vasnprintf-posix-tests (Depends-on): Add float.
* tests/test-vasprintf-posix.c (zerol): Remove variable.
(minus_zerol): New variable.
(test_function): Use minus_zerol instead of -zerol.
* modules/vasprintf-posix-tests (Depends-on): Add float.
2008-10-07 Simon Josefsson <simon@josefsson.org>
* MODULES.html.sh (Support for building documentation): Mention

14
m4/signbit.m4
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@@ -1,4 +1,4 @@
# signbit.m4 serial 3
# signbit.m4 serial 4
dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -123,15 +123,21 @@ AC_DEFUN([gl_SIGNBIT],
fi
])
AC_DEFUN([gl_SIGNBIT_TEST_PROGRAM], [
AC_DEFUN([gl_SIGNBIT_TEST_PROGRAM], [[
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -p0f instead. */
So we use -p0f and -p0d instead. */
float p0f = 0.0f;
float m0f = -p0f;
double p0d = 0.0;
double m0d = -p0d;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use another constant expression instead. */
long double p0l = 0.0L;
#ifdef __hpux
long double m0l = -LDBL_MIN * LDBL_MIN;
#else
long double m0l = -p0l;
#endif
int main ()
{
{
@@ -169,7 +175,7 @@ int main ()
}
return 0;
}
])
]])
AC_DEFUN([gl_FLOAT_SIGN_LOCATION],
[

1
modules/ceill-tests
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@@ -4,6 +4,7 @@ tests/test-ceill.c
Depends-on:
fpucw
isnanl-nolibm
float
configure.ac:

1
modules/floorl-tests
View File

@@ -4,6 +4,7 @@ tests/test-floorl.c
Depends-on:
fpucw
isnanl-nolibm
float
configure.ac:

1
modules/frexpl-tests
View File

@@ -5,6 +5,7 @@ Depends-on:
fpucw
isnanl-nolibm
signbit
float
configure.ac:

1
modules/isnan-tests
View File

@@ -3,6 +3,7 @@ tests/test-isnan.c
tests/nan.h
Depends-on:
float
configure.ac:
gl_FLOAT_EXPONENT_LOCATION

1
modules/isnanl-nolibm-tests
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@@ -3,6 +3,7 @@ tests/test-isnanl-nolibm.c
tests/test-isnanl.h
Depends-on:
float
configure.ac:
gl_LONG_DOUBLE_EXPONENT_LOCATION

1
modules/isnanl-tests
View File

@@ -3,6 +3,7 @@ tests/test-isnanl.c
tests/test-isnanl.h
Depends-on:
float
configure.ac:
gl_LONG_DOUBLE_EXPONENT_LOCATION

1
modules/ldexpl-tests
View File

@@ -5,6 +5,7 @@ Depends-on:
fpucw
isnanl-nolibm
signbit
float
configure.ac:

1
modules/roundl-tests
View File

@@ -4,6 +4,7 @@ tests/test-roundl.c
Depends-on:
fpucw
isnanl-nolibm
float
configure.ac:

1
modules/signbit-tests
View File

@@ -5,6 +5,7 @@ m4/exponentd.m4
m4/exponentl.m4
Depends-on:
float
configure.ac:
AC_REQUIRE([gl_FLOAT_EXPONENT_LOCATION])

1
modules/snprintf-posix-tests
View File

@@ -6,6 +6,7 @@ tests/nan.h
Depends-on:
stdint
float
configure.ac:
AC_DEFINE([CHECK_SNPRINTF_POSIX], 1,

1
modules/sprintf-posix-tests
View File

@@ -5,6 +5,7 @@ tests/nan.h
Depends-on:
stdint
float
configure.ac:

1
modules/truncl-tests
View File

@@ -4,6 +4,7 @@ tests/test-truncl.c
Depends-on:
fpucw
isnanl-nolibm
float
configure.ac:

1
modules/vasnprintf-posix-tests
View File

@@ -7,6 +7,7 @@ m4/locale-fr.m4
Depends-on:
stdint
float
configure.ac:
gt_LOCALE_FR

1
modules/vasprintf-posix-tests
View File

@@ -4,6 +4,7 @@ tests/nan.h
Depends-on:
stdint
float
configure.ac:

1
modules/vsnprintf-posix-tests
View File

@@ -6,6 +6,7 @@ tests/nan.h
Depends-on:
stdint
float
configure.ac:
AC_DEFINE([CHECK_VSNPRINTF_POSIX], 1,

1
modules/vsprintf-posix-tests
View File

@@ -5,6 +5,7 @@ tests/nan.h
Depends-on:
stdint
float
configure.ac:

9
tests/test-ceill.c
View File

@@ -20,6 +20,7 @@
#include <math.h>
#include <float.h>
#include <stdio.h>
#include <stdlib.h>
@@ -38,9 +39,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -51,7 +52,7 @@ main ()
/* Zero. */
ASSERT (ceill (0.0L) == 0.0L);
ASSERT (ceill (-zero) == 0.0L);
ASSERT (ceill (minus_zero) == 0.0L);
/* Positive numbers. */
ASSERT (ceill (0.3L) == 1.0L);
ASSERT (ceill (0.7L) == 1.0L);

9
tests/test-floorl.c
View File

@@ -20,6 +20,7 @@
#include <math.h>
#include <float.h>
#include <stdio.h>
#include <stdlib.h>
@@ -38,9 +39,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -51,7 +52,7 @@ main ()
/* Zero. */
ASSERT (floorl (0.0L) == 0.0L);
ASSERT (floorl (-zero) == 0.0L);
ASSERT (floorl (minus_zero) == 0.0L);
/* Positive numbers. */
ASSERT (floorl (0.3L) == 0.0L);
ASSERT (floorl (0.7L) == 0.0L);

8
tests/test-frexpl.c
View File

@@ -57,9 +57,9 @@
# define MIN_NORMAL_EXP LDBL_MIN_EXP
#endif
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
static long double
my_ldexp (long double x, int d)
@@ -117,7 +117,7 @@ main ()
{ /* Negative zero. */
int exp = -9999;
long double mantissa;
x = -zero;
x = minus_zero;
mantissa = frexpl (x, &exp);
ASSERT (exp == 0);
ASSERT (mantissa == x);

8
tests/test-isnan.c
View File

@@ -48,9 +48,9 @@ float zerof = 0.0f;
So we use -zero instead. */
double zerod = 0.0;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zerol = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
static void
test_float (void)
@@ -146,7 +146,7 @@ test_long_double (void)
ASSERT (!isnan (-2.718e30L));
ASSERT (!isnan (-2.718e-30L));
ASSERT (!isnan (0.0L));
ASSERT (!isnan (-zerol));
ASSERT (!isnan (minus_zerol));
/* Infinite values. */
ASSERT (!isnan (1.0L / 0.0L));
ASSERT (!isnan (-1.0L / 0.0L));

8
tests/test-isnanl.h
View File

@@ -33,9 +33,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -53,7 +53,7 @@ main ()
ASSERT (!isnanl (-2.718e30L));
ASSERT (!isnanl (-2.718e-30L));
ASSERT (!isnanl (0.0L));
ASSERT (!isnanl (-zero));
ASSERT (!isnanl (minus_zero));
/* Infinite values. */
ASSERT (!isnanl (1.0L / 0.0L));
ASSERT (!isnanl (-1.0L / 0.0L));

8
tests/test-ldexpl.c
View File

@@ -39,9 +39,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -82,7 +82,7 @@ main ()
}
{ /* Negative zero. */
x = -zero;
x = minus_zero;
y = ldexpl (x, 0); ASSERT (y == x); ASSERT (signbit (x));
y = ldexpl (x, 5); ASSERT (y == x); ASSERT (signbit (x));
y = ldexpl (x, -5); ASSERT (y == x); ASSERT (signbit (x));

9
tests/test-roundl.c
View File

@@ -22,6 +22,7 @@
#include <math.h>
#include <float.h>
#include <stdio.h>
#include <stdlib.h>
@@ -40,9 +41,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -53,7 +54,7 @@ main ()
/* Zero. */
ASSERT (roundl (0.0L) == 0.0L);
ASSERT (roundl (-zero) == 0.0L);
ASSERT (roundl (minus_zero) == 0.0L);
/* Positive numbers. */
ASSERT (roundl (0.3L) == 0.0L);
ASSERT (roundl (0.5L) == 1.0L);

17
tests/test-signbit.c
View File

@@ -20,6 +20,7 @@
#include <math.h>
#include <float.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
@@ -40,6 +41,16 @@ float zerof = 0.0f;
double zerod = 0.0;
long double zerol = 0.0L;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
So we use -zerof instead. */
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -zerod instead. */
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
static void
test_signbitf ()
{
@@ -140,10 +151,10 @@ test_signbitl ()
ASSERT (signbit (-2.718e-30L));
/* Zeros. */
ASSERT (!signbit (0.0L));
if (1.0L / -zerol < 0)
ASSERT (signbit (-zerol));
if (1.0L / minus_zerol < 0)
ASSERT (signbit (minus_zerol));
else
ASSERT (!signbit (-zerol));
ASSERT (!signbit (minus_zerol));
/* Infinite values. */
ASSERT (!signbit (1.0L / 0.0L));
ASSERT (signbit (-1.0L / 0.0L));

18
tests/test-snprintf-posix.h
View File

@@ -28,12 +28,12 @@ have_minus_zero ()
}
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -zero instead. */
So we use -zerod instead. */
double zerod = 0.0;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zerol = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
@@ -444,7 +444,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* Negative zero. */
char result[100];
int retval =
my_snprintf (result, sizeof (result), "%La %d", -zerol, 33, 44, 55);
my_snprintf (result, sizeof (result), "%La %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0x0p+0 33") == 0);
ASSERT (retval == strlen (result));
@@ -1146,7 +1146,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* Negative zero. */
char result[100];
int retval =
my_snprintf (result, sizeof (result), "%Lf %d", -zerol, 33, 44, 55);
my_snprintf (result, sizeof (result), "%Lf %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (retval == strlen (result));
@@ -1513,7 +1513,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* Negative zero. */
char result[100];
int retval =
my_snprintf (result, sizeof (result), "%LF %d", -zerol, 33, 44, 55);
my_snprintf (result, sizeof (result), "%LF %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (retval == strlen (result));
@@ -2015,7 +2015,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* Negative zero. */
char result[100];
int retval =
my_snprintf (result, sizeof (result), "%Le %d", -zerol, 33, 44, 55);
my_snprintf (result, sizeof (result), "%Le %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000e+00 33") == 0
|| strcmp (result, "-0.000000e+000 33") == 0);
@@ -2668,7 +2668,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* Negative zero. */
char result[100];
int retval =
my_snprintf (result, sizeof (result), "%Lg %d", -zerol, 33, 44, 55);
my_snprintf (result, sizeof (result), "%Lg %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0 33") == 0);
ASSERT (retval == strlen (result));

18
tests/test-sprintf-posix.h
View File

@@ -28,12 +28,12 @@ have_minus_zero ()
}
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -zero instead. */
So we use -zerod instead. */
double zerod = 0.0;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zerol = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
@@ -430,7 +430,7 @@ test_function (int (*my_sprintf) (char *, const char *, ...))
{ /* Negative zero. */
char result[1000];
int retval =
my_sprintf (result, "%La %d", -zerol, 33, 44, 55);
my_sprintf (result, "%La %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0x0p+0 33") == 0);
ASSERT (retval == strlen (result));
@@ -1132,7 +1132,7 @@ test_function (int (*my_sprintf) (char *, const char *, ...))
{ /* Negative zero. */
char result[1000];
int retval =
my_sprintf (result, "%Lf %d", -zerol, 33, 44, 55);
my_sprintf (result, "%Lf %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (retval == strlen (result));
@@ -1499,7 +1499,7 @@ test_function (int (*my_sprintf) (char *, const char *, ...))
{ /* Negative zero. */
char result[1000];
int retval =
my_sprintf (result, "%LF %d", -zerol, 33, 44, 55);
my_sprintf (result, "%LF %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (retval == strlen (result));
@@ -2001,7 +2001,7 @@ test_function (int (*my_sprintf) (char *, const char *, ...))
{ /* Negative zero. */
char result[1000];
int retval =
my_sprintf (result, "%Le %d", -zerol, 33, 44, 55);
my_sprintf (result, "%Le %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000e+00 33") == 0
|| strcmp (result, "-0.000000e+000 33") == 0);
@@ -2654,7 +2654,7 @@ test_function (int (*my_sprintf) (char *, const char *, ...))
{ /* Negative zero. */
char result[1000];
int retval =
my_sprintf (result, "%Lg %d", -zerol, 33, 44, 55);
my_sprintf (result, "%Lg %d", minus_zerol, 33, 44, 55);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0 33") == 0);
ASSERT (retval == strlen (result));

9
tests/test-truncl.c
View File

@@ -20,6 +20,7 @@
#include <math.h>
#include <float.h>
#include <stdio.h>
#include <stdlib.h>
@@ -38,9 +39,9 @@
} \
while (0)
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zero = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead. */
long double minus_zero = -LDBL_MIN * LDBL_MIN;
int
main ()
@@ -51,7 +52,7 @@ main ()
/* Zero. */
ASSERT (truncl (0.0L) == 0.0L);
ASSERT (truncl (-zero) == 0.0L);
ASSERT (truncl (minus_zero) == 0.0L);
/* Positive numbers. */
ASSERT (truncl (0.3L) == 0.0L);
ASSERT (truncl (0.7L) == 0.0L);

18
tests/test-vasnprintf-posix.c
View File

@@ -53,12 +53,12 @@ have_minus_zero ()
}
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -zero instead. */
So we use -zerod instead. */
double zerod = 0.0;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zerol = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
@@ -539,7 +539,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{ /* Negative zero. */
size_t length;
char *result =
my_asnprintf (NULL, &length, "%La %d", -zerol, 33, 44, 55);
my_asnprintf (NULL, &length, "%La %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0x0p+0 33") == 0);
@@ -1351,7 +1351,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{ /* Negative zero. */
size_t length;
char *result =
my_asnprintf (NULL, &length, "%Lf %d", -zerol, 33, 44, 55);
my_asnprintf (NULL, &length, "%Lf %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
@@ -1798,7 +1798,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{ /* Negative zero. */
size_t length;
char *result =
my_asnprintf (NULL, &length, "%LF %d", -zerol, 33, 44, 55);
my_asnprintf (NULL, &length, "%LF %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
@@ -2372,7 +2372,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{ /* Negative zero. */
size_t length;
char *result =
my_asnprintf (NULL, &length, "%Le %d", -zerol, 33, 44, 55);
my_asnprintf (NULL, &length, "%Le %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000e+00 33") == 0
@@ -3127,7 +3127,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{ /* Negative zero. */
size_t length;
char *result =
my_asnprintf (NULL, &length, "%Lg %d", -zerol, 33, 44, 55);
my_asnprintf (NULL, &length, "%Lg %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0 33") == 0);

18
tests/test-vasprintf-posix.c
View File

@@ -53,12 +53,12 @@ have_minus_zero ()
}
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
So we use -zero instead. */
So we use -zerod instead. */
double zerod = 0.0;
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
So we use -zero instead. */
long double zerol = 0.0L;
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zerol instead. */
long double minus_zerol = -LDBL_MIN * LDBL_MIN;
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
@@ -520,7 +520,7 @@ test_function (int (*my_asprintf) (char **, const char *, ...))
{ /* Negative zero. */
char *result;
int retval =
my_asprintf (&result, "%La %d", -zerol, 33, 44, 55);
my_asprintf (&result, "%La %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0x0p+0 33") == 0);
@@ -1332,7 +1332,7 @@ test_function (int (*my_asprintf) (char **, const char *, ...))
{ /* Negative zero. */
char *result;
int retval =
my_asprintf (&result, "%Lf %d", -zerol, 33, 44, 55);
my_asprintf (&result, "%Lf %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
@@ -1779,7 +1779,7 @@ test_function (int (*my_asprintf) (char **, const char *, ...))
{ /* Negative zero. */
char *result;
int retval =
my_asprintf (&result, "%LF %d", -zerol, 33, 44, 55);
my_asprintf (&result, "%LF %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000 33") == 0);
@@ -2353,7 +2353,7 @@ test_function (int (*my_asprintf) (char **, const char *, ...))
{ /* Negative zero. */
char *result;
int retval =
my_asprintf (&result, "%Le %d", -zerol, 33, 44, 55);
my_asprintf (&result, "%Le %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0.000000e+00 33") == 0
@@ -3108,7 +3108,7 @@ test_function (int (*my_asprintf) (char **, const char *, ...))
{ /* Negative zero. */
char *result;
int retval =
my_asprintf (&result, "%Lg %d", -zerol, 33, 44, 55);
my_asprintf (&result, "%Lg %d", minus_zerol, 33, 44, 55);
ASSERT (result != NULL);
if (have_minus_zero ())
ASSERT (strcmp (result, "-0 33") == 0);