/* Test of POSIX compatible vasnprintf() and asnprintf() functions.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2008 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
#include "vasnprintf.h"
+#include <float.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
# define NaN() (0.0 / 0.0)
#endif
+/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
+static int
+have_minus_zero ()
+{
+ static double plus_zero = 0.0;
+ static double minus_zero = -0.0;
+ return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
+}
+
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+ of 'unsigned int' words. */
+#ifdef WORDS_BIGENDIAN
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+ { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+ ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
+ (unsigned int) (mantlo) << 16 \
+ }
+#else
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+ { mantlo, manthi, exponent }
+#endif
+
static int
strmatch (const char *pattern, const char *string)
{
return 1;
}
+/* Test whether string[start_index..end_index-1] is a valid textual
+ representation of NaN. */
+static int
+strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
+{
+ if (start_index < end_index)
+ {
+ if (string[start_index] == '-')
+ start_index++;
+ if (start_index + 3 <= end_index
+ && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
+ {
+ start_index += 3;
+ if (start_index == end_index
+ || (string[start_index] == '(' && string[end_index - 1] == ')'))
+ return 1;
+ }
+ }
+ return 0;
+}
+
static void
test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
{
char *result =
my_asnprintf (NULL, &length, "%a %d", -0.0, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0x0p+0 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%a %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
{ /* FLAG_ZERO with NaN. */
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%010a %d", NaN (), 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050a %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
/* "0000000nan 33" is not a valid result; see
<http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%La %d", -0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0x0p+0 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%La %d", 0.0L / 0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+ { /* Quiet NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+ Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+ Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+ Application Architecture.
+ Table 5-2 "Floating-Point Register Encodings"
+ Figure 5-6 "Memory to Floating-Point Register Data Translation"
+ */
+ { /* Pseudo-NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+#endif
{ /* Rounding near the decimal point. */
size_t length;
{ /* FLAG_ZERO with NaN. */
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050La %d", 0.0L / 0.0L, 33, 44, 55);
ASSERT (result != NULL);
/* "0000000nan 33" is not a valid result; see
<http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%f %d", -0.0, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%f %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
{ /* FLAG_ZERO with NaN. */
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015f %d", NaN (), 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050f %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Lf %d", -0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Lf %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+ { /* Quiet NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+ Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+ Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+ Application Architecture.
+ Table 5-2 "Floating-Point Register Encodings"
+ Figure 5-6 "Memory to Floating-Point Register Data Translation"
+ */
+ { /* Pseudo-NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+#endif
{ /* Width. */
size_t length;
static long double zero = 0.0L;
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015Lf %d", zero / zero, 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050Lf %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%F %d", -0.0, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%F %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "NAN 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 1)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%LF %d", -0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%LF %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "NAN 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 1)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%e %d", -0.0, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000e+00 33") == 0
- || strcmp (result, "-0.000000e+000 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+ || strcmp (result, "-0.000000e+000 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%e %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
{ /* FLAG_ZERO with NaN. */
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015e %d", NaN (), 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050e %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Le %d", -0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0.000000e+00 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0.000000e+00 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Le %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+ { /* Quiet NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+ Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+ Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+ Application Architecture.
+ Table 5-2 "Floating-Point Register Encodings"
+ Figure 5-6 "Memory to Floating-Point Register Data Translation"
+ */
+ { /* Pseudo-NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+#endif
{ /* Width. */
size_t length;
static long double zero = 0.0L;
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015Le %d", zero / zero, 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050Le %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%g %d", -0.0, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%g %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
{ /* FLAG_ZERO with NaN. */
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015g %d", NaN (), 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050g %d", NaN (), 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Lg %d", -0.0L, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "-0 33") == 0);
+ if (have_minus_zero ())
+ ASSERT (strcmp (result, "-0 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
char *result =
my_asnprintf (NULL, &length, "%Lg %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, "nan 33") == 0);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+ { /* Quiet NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+ Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+ Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+ Application Architecture.
+ Table 5-2 "Floating-Point Register Encodings"
+ Figure 5-6 "Memory to Floating-Point Register Data Translation"
+ */
+ { /* Pseudo-NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
+#endif
{ /* Width. */
size_t length;
static long double zero = 0.0L;
size_t length;
char *result =
- my_asnprintf (NULL, &length, "%015Lg %d", zero / zero, 33, 44, 55);
+ my_asnprintf (NULL, &length, "%050Lg %d", zero / zero, 33, 44, 55);
ASSERT (result != NULL);
- ASSERT (strcmp (result, " nan 33") == 0);
+ ASSERT (strlen (result) == 50 + 3
+ && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
ASSERT (length == strlen (result));
free (result);
}
+
+ /* Test the support of the left-adjust flag. */
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "a%*sc", -3, "b");
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "a%-*sc", 3, "b");
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "a%-*sc", -3, "b");
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ /* Test the support of large precision. */
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.4000d %d", 1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ for (i = 0; i < 4000 - 7; i++)
+ ASSERT (result[i] == '0');
+ ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.4000d %d", -1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ ASSERT (result[0] == '-');
+ for (i = 0; i < 4000 - 7; i++)
+ ASSERT (result[1 + i] == '0');
+ ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.4000u %d", 1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ for (i = 0; i < 4000 - 7; i++)
+ ASSERT (result[i] == '0');
+ ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.4000o %d", 1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ for (i = 0; i < 4000 - 7; i++)
+ ASSERT (result[i] == '0');
+ ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.4000x %d", 1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ for (i = 0; i < 4000 - 6; i++)
+ ASSERT (result[i] == '0');
+ ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#.4000x %d", 1234567, 99);
+ size_t i;
+ ASSERT (result != NULL);
+ ASSERT (result[0] == '0');
+ ASSERT (result[1] == 'x');
+ for (i = 0; i < 4000 - 6; i++)
+ ASSERT (result[2 + i] == '0');
+ ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ {
+ char input[5000];
+ size_t length;
+ char *result;
+ size_t i;
+
+ for (i = 0; i < sizeof (input) - 1; i++)
+ input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+ input[i] = '\0';
+ result = my_asnprintf (NULL, &length, "%.4000s %d", input, 99);
+ ASSERT (result != NULL);
+ ASSERT (memcmp (result, input, 4000) == 0);
+ ASSERT (strcmp (result + 4000, " 99") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
}
static char *
projects / gnulib.git / blobdiff