X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-snprintf-posix.h;h=47ad86c4be85472be432f900af6c4695acebfd89;hb=30cb288509bfdf8a5c5600eb9514a8ea599668a7;hp=346d32e08461a58855c22145738d68a69f5feda2;hpb=dcbb9e701f6c6f7ea01e08524a008fd2b149dfa3;p=gnulib.git
diff --git a/tests/test-snprintf-posix.h b/tests/test-snprintf-posix.h
index 346d32e08..47ad86c4b 100644
--- a/tests/test-snprintf-posix.h
+++ b/tests/test-snprintf-posix.h
@@ -1,10 +1,10 @@
/* Test of POSIX compatible vsnprintf() and snprintf() 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
@@ -12,22 +12,11 @@
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 . */
/* Written by Bruno Haible , 2007. */
-/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
-#ifdef __DECC
-static double
-NaN ()
-{
- static double zero = 0.0;
- return zero / zero;
-}
-#else
-# define NaN() (0.0 / 0.0)
-#endif
+#include "nan.h"
/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
static int
@@ -38,6 +27,19 @@ have_minus_zero ()
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)
{
@@ -69,7 +71,7 @@ strisnan (const char *string, size_t start_index, size_t end_index, int uppercas
}
return 0;
}
-
+
static void
test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{
@@ -195,7 +197,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%a %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -392,7 +394,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* FLAG_ZERO with NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050a %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
/* "0000000nan 33" is not a valid result; see
*/
ASSERT (strlen (result) == 50 + 3
@@ -459,12 +461,99 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%La %d", 0.0L / 0.0L, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (retval == strlen (result));
}
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+#endif
{ /* Rounding near the decimal point. */
char result[100];
@@ -657,7 +746,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* FLAG_ZERO with NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050La %d", 0.0L / 0.0L, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
/* "0000000nan 33" is not a valid result; see
*/
ASSERT (strlen (result) == 50 + 3
@@ -819,7 +908,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%f %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -900,7 +989,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* FLAG_ZERO with NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050f %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -915,6 +1004,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
+ ASSERT (strcmp (result, "1000.00 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* A positive number. */
char result[100];
int retval =
@@ -1064,15 +1169,101 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%Lf %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+#endif
{ /* Width. */
char result[100];
@@ -1146,10 +1337,9 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* FLAG_ZERO with NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050Lf %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1164,6 +1354,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
+ ASSERT (strcmp (result, "1000.00 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the %F format directive. */
{ /* A positive number. */
@@ -1228,7 +1434,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%F %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 1)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1260,6 +1466,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
+ ASSERT (strcmp (result, "1000.00 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* A positive number. */
char result[100];
int retval =
@@ -1320,10 +1542,9 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%LF %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 1)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1355,6 +1576,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
+ ASSERT (strcmp (result, "1000.00 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the %e format directive. */
{ /* A positive number. */
@@ -1522,7 +1759,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%e %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1613,7 +1850,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* FLAG_ZERO with NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050e %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1629,6 +1866,24 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
+ ASSERT (strcmp (result, "9.9995e+02 33") == 0
+ || strcmp (result, "9.9995e+002 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
+ ASSERT (strcmp (result, "1.0000e+03 33") == 0
+ || strcmp (result, "1.0000e+003 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* A positive number. */
char result[100];
int retval =
@@ -1778,15 +2033,101 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%Le %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (retval == strlen (result));
}
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+#endif
{ /* Width. */
char result[100];
@@ -1862,10 +2203,9 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* FLAG_ZERO with NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050Le %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -1880,6 +2220,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
+ ASSERT (strcmp (result, "9.9995e+02 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
+ ASSERT (strcmp (result, "1.0000e+03 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the %g format directive. */
{ /* A positive number. */
@@ -2043,7 +2399,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%g %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -2127,7 +2483,7 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{ /* FLAG_ZERO with NaN. */
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050g %d", NaN (), 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -2143,6 +2499,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
+ ASSERT (strcmp (result, "1000 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* A positive number. */
char result[100];
int retval =
@@ -2292,15 +2664,101 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%Lg %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ {
+ /* Signalling NaN. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (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) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Infinity. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
ASSERT (strlen (result) >= 3 + 3
&& strisnan (result, 0, strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
ASSERT (retval == strlen (result));
}
+ { /* Pseudo-Zero. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Unnormalized number. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+ { /* Pseudo-Denormal. */
+ static union { unsigned int word[4]; long double value; } x =
+ { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+ ASSERT (strlen (result) >= 3 + 3
+ && strisnan (result, 0, strlen (result) - 3, 0)
+ && strcmp (result + strlen (result) - 3, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+#endif
{ /* Width. */
char result[100];
@@ -2376,10 +2834,9 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
}
{ /* FLAG_ZERO with NaN. */
- static long double zero = 0.0L;
char result[100];
int retval =
- my_snprintf (result, sizeof (result), "%050Lg %d", zero / zero, 33, 44, 55);
+ my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
ASSERT (strlen (result) == 50 + 3
&& strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
&& strcmp (result + strlen (result) - 3, " 33") == 0);
@@ -2394,6 +2851,22 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision with no rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
+ ASSERT (strcmp (result, "999.95 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision with rounding. */
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
+ ASSERT (strcmp (result, "1000 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the %n format directive. */
{
@@ -2425,4 +2898,123 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
ASSERT (result[strlen (result) - 1] == '9');
ASSERT (retval == strlen (result));
}
+
+ /* Test the support of the left-adjust flag. */
+
+ {
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ {
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ {
+ char result[100];
+ int retval =
+ my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
+ ASSERT (strcmp (result, "ab c") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ /* Test the support of large precision. */
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.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 (retval == strlen (result));
+ }
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.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 (retval == strlen (result));
+ }
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.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 (retval == strlen (result));
+ }
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.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 (retval == strlen (result));
+ }
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%.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 (retval == strlen (result));
+ }
+
+ {
+ char result[5000];
+ int retval =
+ my_snprintf (result, sizeof (result), "%#.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 (retval == strlen (result));
+ }
+
+ {
+ char input[5000];
+ char result[5000];
+ int retval;
+ size_t i;
+
+ for (i = 0; i < sizeof (input) - 1; i++)
+ input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+ input[i] = '\0';
+ retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
+ ASSERT (result != NULL);
+ ASSERT (memcmp (result, input, 4000) == 0);
+ ASSERT (strcmp (result + 4000, " 99") == 0);
+ ASSERT (retval == strlen (result));
+ }
}