X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=tests%2Ftest-snprintf-posix.h;h=262cdda558ec96e06b3c0f8567061125648f13ac;hb=2b08e890726e2c572d2ba64f19bece957d1bfd98;hp=5bc4f8bdb56dd8b00106513f42cd3866a35914ac;hpb=674d0dd44bd45d5ccda733a0f0e2b3f764095b84;p=gnulib.git diff --git a/tests/test-snprintf-posix.h b/tests/test-snprintf-posix.h index 5bc4f8bdb..262cdda55 100644 --- a/tests/test-snprintf-posix.h +++ b/tests/test-snprintf-posix.h @@ -1,5 +1,5 @@ /* Test of POSIX compatible vsnprintf() and snprintf() functions. - Copyright (C) 2007-2008 Free Software Foundation, Inc. + Copyright (C) 2007-2009 Free Software Foundation, Inc. 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 @@ -28,12 +28,24 @@ 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. + IRIX cc can't put -0.0L into .data, but can compute at runtime. + Note that the expression -LDBL_MIN * LDBL_MIN does not work on other + platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */ +#if defined __hpux || defined __sgi +static long double +compute_minus_zerol (void) +{ + return -LDBL_MIN * LDBL_MIN; +} +# define minus_zerol compute_minus_zerol () +#else +long double minus_zerol = -0.0L; +#endif /* Representation of an 80-bit 'long double' as an initializer for a sequence of 'unsigned int' words. */ @@ -444,7 +456,7 @@ 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 +1158,7 @@ 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 +1525,7 @@ 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)); @@ -1883,7 +1895,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55); - ASSERT (strcmp (result, "1.275000e+01 33") == 0); + ASSERT (strcmp (result, "1.275000e+01 33") == 0 + || strcmp (result, "1.275000e+001 33") == 0); ASSERT (retval == strlen (result)); } @@ -1891,7 +1904,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55); - ASSERT (strcmp (result, "1.234567e+06 33") == 0); + ASSERT (strcmp (result, "1.234567e+06 33") == 0 + || strcmp (result, "1.234567e+006 33") == 0); ASSERT (retval == strlen (result)); } @@ -1979,7 +1993,15 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Le", data[k].value); - ASSERT (strcmp (result, data[k].string) == 0); + const char *expected = data[k].string; + ASSERT (strcmp (result, expected) == 0 + /* Some implementations produce exponents with 3 digits. */ + || (strlen (result) == strlen (expected) + 1 + && memcmp (result, expected, strlen (expected) - 2) == 0 + && result[strlen (expected) - 2] == '0' + && strcmp (result + strlen (expected) - 1, + expected + strlen (expected) - 2) + == 0)); ASSERT (retval == strlen (result)); } } @@ -1988,7 +2010,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55); - ASSERT (strcmp (result, "-3.125000e-02 33") == 0); + ASSERT (strcmp (result, "-3.125000e-02 33") == 0 + || strcmp (result, "-3.125000e-002 33") == 0); ASSERT (retval == strlen (result)); } @@ -1996,16 +2019,18 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55); - ASSERT (strcmp (result, "0.000000e+00 33") == 0); + ASSERT (strcmp (result, "0.000000e+00 33") == 0 + || strcmp (result, "0.000000e+000 33") == 0); ASSERT (retval == strlen (result)); } { /* 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); + ASSERT (strcmp (result, "-0.000000e+00 33") == 0 + || strcmp (result, "-0.000000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2128,7 +2153,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, " 1.750000e+00 33") == 0); + ASSERT (strcmp (result, " 1.750000e+00 33") == 0 + || strcmp (result, " 1.750000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2136,7 +2162,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, "1.750000e+00 33") == 0); + ASSERT (strcmp (result, "1.750000e+00 33") == 0 + || strcmp (result, "1.750000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2144,7 +2171,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, "+1.750000e+00 33") == 0); + ASSERT (strcmp (result, "+1.750000e+00 33") == 0 + || strcmp (result, "+1.750000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2152,7 +2180,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, " 1.750000e+00 33") == 0); + ASSERT (strcmp (result, " 1.750000e+00 33") == 0 + || strcmp (result, " 1.750000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2160,7 +2189,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, "1.750000e+00 33") == 0); + ASSERT (strcmp (result, "1.750000e+00 33") == 0 + || strcmp (result, "1.750000e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2168,7 +2198,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55); - ASSERT (strcmp (result, "2.e+00 33") == 0); + ASSERT (strcmp (result, "2.e+00 33") == 0 + || strcmp (result, "2.e+000 33") == 0); ASSERT (retval == strlen (result)); } @@ -2176,7 +2207,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55); - ASSERT (strcmp (result, "1.e+01 33") == 0); + ASSERT (strcmp (result, "1.e+01 33") == 0 + || strcmp (result, "1.e+001 33") == 0); ASSERT (retval == strlen (result)); } @@ -2184,7 +2216,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55); - ASSERT (strcmp (result, "0001.234000e+03 33") == 0); + ASSERT (strcmp (result, "0001.234000e+03 33") == 0 + || strcmp (result, "001.234000e+003 33") == 0); ASSERT (retval == strlen (result)); } @@ -2211,7 +2244,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55); - ASSERT (strcmp (result, "1e+03 33") == 0); + ASSERT (strcmp (result, "1e+03 33") == 0 + || strcmp (result, "1e+003 33") == 0); ASSERT (retval == strlen (result)); } @@ -2219,7 +2253,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) 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 (strcmp (result, "9.9995e+02 33") == 0 + || strcmp (result, "9.9995e+002 33") == 0); ASSERT (retval == strlen (result)); } @@ -2227,7 +2262,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) 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 (strcmp (result, "1.0000e+03 33") == 0 + || strcmp (result, "1.0000e+003 33") == 0); ASSERT (retval == strlen (result)); } @@ -2522,7 +2558,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55); - ASSERT (strcmp (result, "1.23457e+06 33") == 0); + ASSERT (strcmp (result, "1.23457e+06 33") == 0 + || strcmp (result, "1.23457e+006 33") == 0); ASSERT (retval == strlen (result)); } @@ -2610,7 +2647,16 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%Lg", data[k].value); - ASSERT (strcmp (result, data[k].string) == 0); + const char *expected = data[k].string; + ASSERT (strcmp (result, expected) == 0 + /* Some implementations produce exponents with 3 digits. */ + || (expected[strlen (expected) - 4] == 'e' + && strlen (result) == strlen (expected) + 1 + && memcmp (result, expected, strlen (expected) - 2) == 0 + && result[strlen (expected) - 2] == '0' + && strcmp (result + strlen (expected) - 1, + expected + strlen (expected) - 2) + == 0)); ASSERT (retval == strlen (result)); } } @@ -2634,7 +2680,7 @@ 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)); @@ -2807,7 +2853,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55); - ASSERT (strcmp (result, "1.e+01 33") == 0); + ASSERT (strcmp (result, "1.e+01 33") == 0 + || strcmp (result, "1.e+001 33") == 0); ASSERT (retval == strlen (result)); } @@ -2842,7 +2889,8 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) char result[100]; int retval = my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55); - ASSERT (strcmp (result, "1e+03 33") == 0); + ASSERT (strcmp (result, "1e+03 33") == 0 + || strcmp (result, "1e+003 33") == 0); ASSERT (retval == strlen (result)); } @@ -3016,4 +3064,50 @@ test_function (int (*my_snprintf) (char *, size_t, const char *, ...)) ASSERT (strcmp (result + 4000, " 99") == 0); ASSERT (retval == strlen (result)); } + + /* Test the support of the %s format directive. */ + + /* To verify that these tests succeed, it is necessary to run them under + a tool that checks against invalid memory accesses, such as ElectricFence + or "valgrind --tool=memcheck". */ + { + size_t i; + + for (i = 1; i <= 8; i++) + { + char *block; + char result[5000]; + int retval; + + block = (char *) malloc (i); + memcpy (block, "abcdefgh", i); + retval = my_snprintf (result, sizeof (result), "%.*s", (int) i, block); + ASSERT (memcmp (result, block, i) == 0); + ASSERT (result[i] == '\0'); + ASSERT (retval == strlen (result)); + free (block); + } + } +#if HAVE_WCHAR_T + { + size_t i; + + for (i = 1; i <= 8; i++) + { + wchar_t *block; + size_t j; + char result[5000]; + int retval; + + block = (wchar_t *) malloc (i * sizeof (wchar_t)); + for (j = 0; j < i; j++) + block[j] = "abcdefgh"[j]; + retval = my_snprintf (result, sizeof (result), "%.*ls", (int) i, block); + ASSERT (memcmp (result, "abcdefgh", i) == 0); + ASSERT (result[i] == '\0'); + ASSERT (retval == strlen (result)); + free (block); + } + } +#endif }