From 6eb5949dd99d174393465069c2fd0bab32deddcc Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Mon, 28 Dec 2015 00:06:36 +0000 Subject: gettext-0.19.7 --- gettext-tools/gnulib-tests/test-isinf.c | 246 ++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 gettext-tools/gnulib-tests/test-isinf.c (limited to 'gettext-tools/gnulib-tests/test-isinf.c') diff --git a/gettext-tools/gnulib-tests/test-isinf.c b/gettext-tools/gnulib-tests/test-isinf.c new file mode 100644 index 0000000..d56feb4 --- /dev/null +++ b/gettext-tools/gnulib-tests/test-isinf.c @@ -0,0 +1,246 @@ +/* Test of isinf() substitute. + Copyright (C) 2007-2015 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 + 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 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + 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, see . */ + +/* Written by Ben Pfaff, 2008, using Bruno Haible's code as a + template. */ + +#include + +#include + +/* isinf must be a macro. */ +#ifndef isinf +# error missing declaration +#endif + +#include +#include + +#include "infinity.h" +#include "macros.h" + +float zerof = 0.0f; +double zerod = 0.0; +long double zerol = 0.0L; + +static void +test_isinff () +{ + /* Zero. */ + ASSERT (!isinf (0.0f)); + /* Subnormal values. */ + ASSERT (!isinf (FLT_MIN / 2)); + ASSERT (!isinf (-FLT_MIN / 2)); + /* Finite values. */ + ASSERT (!isinf (3.141f)); + ASSERT (!isinf (3.141e30f)); + ASSERT (!isinf (3.141e-30f)); + ASSERT (!isinf (-2.718f)); + ASSERT (!isinf (-2.718e30f)); + ASSERT (!isinf (-2.718e-30f)); + ASSERT (!isinf (FLT_MAX)); + ASSERT (!isinf (-FLT_MAX)); + /* Infinite values. */ + ASSERT (isinf (Infinityf ())); + ASSERT (isinf (- Infinityf ())); + /* Quiet NaN. */ + ASSERT (!isinf (zerof / zerof)); +#if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT + /* Signalling NaN. */ + { + #define NWORDS \ + ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) + typedef union { float value; unsigned int word[NWORDS]; } memory_float; + memory_float m; + m.value = zerof / zerof; +# if FLT_EXPBIT0_BIT > 0 + m.word[FLT_EXPBIT0_WORD] ^= (unsigned int) 1 << (FLT_EXPBIT0_BIT - 1); +# else + m.word[FLT_EXPBIT0_WORD + (FLT_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)] + ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1); +# endif + if (FLT_EXPBIT0_WORD < NWORDS / 2) + m.word[FLT_EXPBIT0_WORD + 1] |= (unsigned int) 1 << FLT_EXPBIT0_BIT; + else + m.word[0] |= (unsigned int) 1; + ASSERT (!isinf (m.value)); + #undef NWORDS + } +#endif +} + +static void +test_isinfd () +{ + /* Zero. */ + ASSERT (!isinf (0.0)); + /* Subnormal values. */ + ASSERT (!isinf (DBL_MIN / 2)); + ASSERT (!isinf (-DBL_MIN / 2)); + /* Finite values. */ + ASSERT (!isinf (3.141)); + ASSERT (!isinf (3.141e30)); + ASSERT (!isinf (3.141e-30)); + ASSERT (!isinf (-2.718)); + ASSERT (!isinf (-2.718e30)); + ASSERT (!isinf (-2.718e-30)); + ASSERT (!isinf (DBL_MAX)); + ASSERT (!isinf (-DBL_MAX)); + /* Infinite values. */ + ASSERT (isinf (Infinityd ())); + ASSERT (isinf (- Infinityd ())); + /* Quiet NaN. */ + ASSERT (!isinf (zerod / zerod)); +#if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT + /* Signalling NaN. */ + { + #define NWORDS \ + ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) + typedef union { double value; unsigned int word[NWORDS]; } memory_double; + memory_double m; + m.value = zerod / zerod; +# if DBL_EXPBIT0_BIT > 0 + m.word[DBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (DBL_EXPBIT0_BIT - 1); +# else + m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)] + ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1); +# endif + m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)] + |= (unsigned int) 1 << DBL_EXPBIT0_BIT; + ASSERT (!isinf (m.value)); + #undef NWORDS + } +#endif +} + +static void +test_isinfl () +{ + #define NWORDS \ + ((sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) + typedef union { unsigned int word[NWORDS]; long double value; } + memory_long_double; + + /* Zero. */ + ASSERT (!isinf (0.0L)); + /* Subnormal values. */ + ASSERT (!isinf (LDBL_MIN / 2)); + ASSERT (!isinf (-LDBL_MIN / 2)); + /* Finite values. */ + ASSERT (!isinf (3.141L)); + ASSERT (!isinf (3.141e30L)); + ASSERT (!isinf (3.141e-30L)); + ASSERT (!isinf (-2.718L)); + ASSERT (!isinf (-2.718e30L)); + ASSERT (!isinf (-2.718e-30L)); + ASSERT (!isinf (LDBL_MAX)); + ASSERT (!isinf (-LDBL_MAX)); + /* Infinite values. */ + ASSERT (isinf (Infinityl ())); + ASSERT (isinf (- Infinityl ())); + /* Quiet NaN. */ + ASSERT (!isinf (zerol / zerol)); + +#if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT + /* A bit pattern that is different from a Quiet NaN. With a bit of luck, + it's a Signalling NaN. */ + { +#if defined __powerpc__ && LDBL_MANT_DIG == 106 + /* This is PowerPC "double double", a pair of two doubles. Inf and Nan are + represented as the corresponding 64-bit IEEE values in the first double; + the second is ignored. Manipulate only the first double. */ + #undef NWORDS + #define NWORDS \ + ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) +#endif + + memory_long_double m; + m.value = zerol / zerol; +# if LDBL_EXPBIT0_BIT > 0 + m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1); +# else + m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)] + ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1); +# endif + m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)] + |= (unsigned int) 1 << LDBL_EXPBIT0_BIT; + ASSERT (!isinf (m.value)); + } +#endif + +#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE +/* 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 + { /* Quiet NaN. */ + static memory_long_double x = + { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) }; + ASSERT (!isinf (x.value)); + } + { + /* Signalling NaN. */ + static memory_long_double x = + { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) }; + ASSERT (!isinf (x.value)); + } + /* isinf should return something for noncanonical values. */ + { /* Pseudo-NaN. */ + static memory_long_double x = + { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) }; + ASSERT (isinf (x.value) || !isinf (x.value)); + } + { /* Pseudo-Infinity. */ + static memory_long_double x = + { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) }; + ASSERT (isinf (x.value) || !isinf (x.value)); + } + { /* Pseudo-Zero. */ + static memory_long_double x = + { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) }; + ASSERT (isinf (x.value) || !isinf (x.value)); + } + { /* Unnormalized number. */ + static memory_long_double x = + { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) }; + ASSERT (isinf (x.value) || !isinf (x.value)); + } + { /* Pseudo-Denormal. */ + static memory_long_double x = + { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) }; + ASSERT (isinf (x.value) || !isinf (x.value)); + } +#endif + + #undef NWORDS +} + +int +main () +{ + test_isinff (); + test_isinfd (); + test_isinfl (); + return 0; +} -- cgit v1.2.1