diff options
Diffstat (limited to 'gl/tests/test-intprops.c')
-rw-r--r-- | gl/tests/test-intprops.c | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/gl/tests/test-intprops.c b/gl/tests/test-intprops.c deleted file mode 100644 index 0a8ddcd748..0000000000 --- a/gl/tests/test-intprops.c +++ /dev/null @@ -1,370 +0,0 @@ -/* Test intprops.h. - Copyright (C) 2011-2016 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 <http://www.gnu.org/licenses/>. */ - -/* Written by Paul Eggert. */ - -/* Tell gcc not to warn about the long expressions that the overflow - macros expand to, or about the (X < 0) expressions. */ -#if 4 < __GNUC__ + (3 <= __GNUC_MINOR__) -# pragma GCC diagnostic ignored "-Woverlength-strings" -# pragma GCC diagnostic ignored "-Wtype-limits" - -/* Work around a bug in GCC 6.1 and earlier; see: - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68971 */ -# pragma GCC diagnostic ignored "-Woverflow" - -#endif - -#include <config.h> - -#include "intprops.h" -#include "verify.h" - -#include <stdbool.h> -#include <inttypes.h> -#include <limits.h> - -#include "macros.h" - -/* VERIFY (X) uses a static assertion for compilers that are known to work, - and falls back on a dynamic assertion for other compilers. - These tests should be checkable via 'verify' rather than 'ASSERT', but - using 'verify' would run into a bug with HP-UX 11.23 cc; see - <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */ -#if __GNUC__ || __SUNPRO_C -# define VERIFY(x) do { verify (x); } while (0) -#else -# define VERIFY(x) ASSERT (x) -#endif - -#define DONTCARE __LINE__ - -int -main (void) -{ - /* Use VERIFY for tests that must be integer constant expressions, - ASSERT otherwise. */ - - /* TYPE_IS_INTEGER. */ - ASSERT (TYPE_IS_INTEGER (bool)); - ASSERT (TYPE_IS_INTEGER (char)); - ASSERT (TYPE_IS_INTEGER (signed char)); - ASSERT (TYPE_IS_INTEGER (unsigned char)); - ASSERT (TYPE_IS_INTEGER (short int)); - ASSERT (TYPE_IS_INTEGER (unsigned short int)); - ASSERT (TYPE_IS_INTEGER (int)); - ASSERT (TYPE_IS_INTEGER (unsigned int)); - ASSERT (TYPE_IS_INTEGER (long int)); - ASSERT (TYPE_IS_INTEGER (unsigned long int)); - ASSERT (TYPE_IS_INTEGER (intmax_t)); - ASSERT (TYPE_IS_INTEGER (uintmax_t)); - ASSERT (! TYPE_IS_INTEGER (float)); - ASSERT (! TYPE_IS_INTEGER (double)); - ASSERT (! TYPE_IS_INTEGER (long double)); - - /* TYPE_SIGNED. */ - /* VERIFY (! TYPE_SIGNED (bool)); // not guaranteed by gnulib substitute */ - VERIFY (TYPE_SIGNED (signed char)); - VERIFY (! TYPE_SIGNED (unsigned char)); - VERIFY (TYPE_SIGNED (short int)); - VERIFY (! TYPE_SIGNED (unsigned short int)); - VERIFY (TYPE_SIGNED (int)); - VERIFY (! TYPE_SIGNED (unsigned int)); - VERIFY (TYPE_SIGNED (long int)); - VERIFY (! TYPE_SIGNED (unsigned long int)); - VERIFY (TYPE_SIGNED (intmax_t)); - VERIFY (! TYPE_SIGNED (uintmax_t)); - ASSERT (TYPE_SIGNED (float)); - ASSERT (TYPE_SIGNED (double)); - ASSERT (TYPE_SIGNED (long double)); - - /* Integer representation. Check that it is two's complement. */ - VERIFY (INT_MIN + INT_MAX < 0); - - /* TYPE_MINIMUM, TYPE_MAXIMUM. */ - VERIFY (TYPE_MINIMUM (char) == CHAR_MIN); - VERIFY (TYPE_MAXIMUM (char) == CHAR_MAX); - VERIFY (TYPE_MINIMUM (unsigned char) == 0); - VERIFY (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX); - VERIFY (TYPE_MINIMUM (signed char) == SCHAR_MIN); - VERIFY (TYPE_MAXIMUM (signed char) == SCHAR_MAX); - VERIFY (TYPE_MINIMUM (short int) == SHRT_MIN); - VERIFY (TYPE_MAXIMUM (short int) == SHRT_MAX); - VERIFY (TYPE_MINIMUM (unsigned short int) == 0); - VERIFY (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX); - VERIFY (TYPE_MINIMUM (int) == INT_MIN); - VERIFY (TYPE_MAXIMUM (int) == INT_MAX); - VERIFY (TYPE_MINIMUM (unsigned int) == 0); - VERIFY (TYPE_MAXIMUM (unsigned int) == UINT_MAX); - VERIFY (TYPE_MINIMUM (long int) == LONG_MIN); - VERIFY (TYPE_MAXIMUM (long int) == LONG_MAX); - VERIFY (TYPE_MINIMUM (unsigned long int) == 0); - VERIFY (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX); - VERIFY (TYPE_MINIMUM (intmax_t) == INTMAX_MIN); - VERIFY (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX); - VERIFY (TYPE_MINIMUM (uintmax_t) == 0); - VERIFY (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX); - - /* INT_BITS_STRLEN_BOUND. */ - VERIFY (INT_BITS_STRLEN_BOUND (1) == 1); - VERIFY (INT_BITS_STRLEN_BOUND (2620) == 789); - - /* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */ - #ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX. */ - VERIFY (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1); - VERIFY (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648")); - #endif - #ifdef INT64_MAX - VERIFY (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1); - VERIFY (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808")); - #endif - - /* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as - INT_<op>_OVERFLOW tests, so define macros to do both. OP is the - operation, OPNAME its symbolic name, A and B its operands, T the - result type, V the overflow flag, and VRES the result if V and if - two's complement. CHECK_BINOP is for most binary operatinos, - CHECK_SBINOP for binary +, -, * when the result type is signed, - and CHECK_UNOP for unary operations. */ - #define CHECK_BINOP(op, opname, a, b, t, v, vres) \ - VERIFY (INT_##opname##_RANGE_OVERFLOW (a, b, TYPE_MINIMUM (t), \ - TYPE_MAXIMUM (t)) \ - == (v)); \ - VERIFY (INT_##opname##_OVERFLOW (a, b) == (v)) - #define CHECK_SBINOP(op, opname, a, b, t, v, vres) \ - CHECK_BINOP(op, opname, a, b, t, v, vres); \ - { \ - t result; \ - ASSERT (INT_##opname##_WRAPV (a, b, &result) == (v)); \ - ASSERT (result == ((v) ? (vres) : ((a) op (b)))); \ - } - #define CHECK_UNOP(op, opname, a, t, v) \ - VERIFY (INT_##opname##_RANGE_OVERFLOW (a, TYPE_MINIMUM (t), \ - TYPE_MAXIMUM (t)) \ - == (v)); \ - VERIFY (INT_##opname##_OVERFLOW (a) == (v)) - - /* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */ - VERIFY (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX)); - VERIFY (INT_ADD_OVERFLOW (INT_MAX, 1)); - - CHECK_SBINOP (+, ADD, INT_MAX, 1, int, true, INT_MIN); - CHECK_SBINOP (+, ADD, INT_MAX, -1, int, false, INT_MAX - 1); - CHECK_SBINOP (+, ADD, INT_MIN, 1, int, false, INT_MIN + 1); - CHECK_SBINOP (+, ADD, INT_MIN, -1, int, true, INT_MAX); - CHECK_BINOP (+, ADD, UINT_MAX, 1u, unsigned int, true, 0u); - CHECK_BINOP (+, ADD, 0u, 1u, unsigned int, false, 1u); - - CHECK_SBINOP (-, SUBTRACT, INT_MAX, 1, int, false, INT_MAX - 1); - CHECK_SBINOP (-, SUBTRACT, INT_MAX, -1, int, true, INT_MIN); - CHECK_SBINOP (-, SUBTRACT, INT_MIN, 1, int, true, INT_MAX); - CHECK_SBINOP (-, SUBTRACT, INT_MIN, -1, int, false, INT_MIN - -1); - CHECK_BINOP (-, SUBTRACT, UINT_MAX, 1u, unsigned int, false, UINT_MAX - 1u); - CHECK_BINOP (-, SUBTRACT, 0u, 1u, unsigned int, true, 0u - 1u); - - CHECK_UNOP (-, NEGATE, INT_MIN, int, true); - CHECK_UNOP (-, NEGATE, 0, int, false); - CHECK_UNOP (-, NEGATE, INT_MAX, int, false); - CHECK_UNOP (-, NEGATE, 0u, unsigned int, false); - CHECK_UNOP (-, NEGATE, 1u, unsigned int, true); - CHECK_UNOP (-, NEGATE, UINT_MAX, unsigned int, true); - - CHECK_SBINOP (*, MULTIPLY, INT_MAX, INT_MAX, int, true, 1); - CHECK_SBINOP (*, MULTIPLY, INT_MAX, INT_MIN, int, true, INT_MIN); - CHECK_SBINOP (*, MULTIPLY, INT_MIN, INT_MAX, int, true, INT_MIN); - CHECK_SBINOP (*, MULTIPLY, INT_MIN, INT_MIN, int, true, 0); - CHECK_SBINOP (*, MULTIPLY, -1, INT_MIN, int, - INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); - CHECK_SBINOP (*, MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX, - long int, false, LONG_MIN - LONG_MIN % INT_MAX); - - CHECK_BINOP (/, DIVIDE, INT_MIN, -1, int, - INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); - CHECK_BINOP (/, DIVIDE, INT_MAX, 1, int, false, INT_MAX); - CHECK_BINOP (/, DIVIDE, (unsigned int) INT_MIN, -1u, unsigned int, - false, INT_MIN / -1u); - - CHECK_BINOP (%, REMAINDER, INT_MIN, -1, int, INT_NEGATE_OVERFLOW (INT_MIN), 0); - CHECK_BINOP (%, REMAINDER, INT_MAX, 1, int, false, 0); - CHECK_BINOP (%, REMAINDER, (unsigned int) INT_MIN, -1u, unsigned int, - false, INT_MIN % -1u); - - CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX, 1, unsigned int, true, UINT_MAX << 1); - CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX / 2 + 1, 1, unsigned int, true, - (UINT_MAX / 2 + 1) << 1); - CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX / 2, 1, unsigned int, false, - (UINT_MAX / 2) << 1); - - /* INT_<op>_OVERFLOW and INT_<op>_WRAPV with mixed types. */ - #define CHECK_SUM(a, b, t, v, vres) \ - CHECK_SUM1(a, b, t, v, vres); \ - CHECK_SUM1(b, a, t, v, vres) - #define CHECK_SSUM(a, b, t, v, vres) \ - CHECK_SSUM1(a, b, t, v, vres); \ - CHECK_SSUM1(b, a, t, v, vres) - #define CHECK_SUM1(a, b, t, v, vres) \ - VERIFY (INT_ADD_OVERFLOW (a, b) == (v)) - #define CHECK_SSUM1(a, b, t, v, vres) \ - CHECK_SUM1(a, b, t, v, vres); \ - { \ - t result; \ - ASSERT (INT_ADD_WRAPV (a, b, &result) == (v)); \ - ASSERT (result == ((v) ? (vres) : ((a) + (b)))); \ - } - CHECK_SSUM (-1, LONG_MIN, long int, true, LONG_MAX); - CHECK_SUM (-1, UINT_MAX, unsigned int, false, DONTCARE); - CHECK_SSUM (-1L, INT_MIN, long int, INT_MIN == LONG_MIN, - INT_MIN == LONG_MIN ? INT_MAX : DONTCARE); - CHECK_SUM (0u, -1, unsigned int, true, 0u + -1); - CHECK_SUM (0u, 0, unsigned int, false, DONTCARE); - CHECK_SUM (0u, 1, unsigned int, false, DONTCARE); - CHECK_SSUM (1, LONG_MAX, long int, true, LONG_MIN); - CHECK_SUM (1, UINT_MAX, unsigned int, true, 0u); - CHECK_SSUM (1L, INT_MAX, long int, INT_MAX == LONG_MAX, - INT_MAX == LONG_MAX ? INT_MIN : DONTCARE); - CHECK_SUM (1u, INT_MAX, unsigned int, INT_MAX == UINT_MAX, 1u + INT_MAX); - CHECK_SUM (1u, INT_MIN, unsigned int, true, 1u + INT_MIN); - { - long int result; - ASSERT (INT_ADD_WRAPV (1, INT_MAX, &result) == (INT_MAX == LONG_MAX)); - ASSERT (INT_ADD_WRAPV (-1, INT_MIN, &result) == (INT_MIN == LONG_MIN)); - } - - #define CHECK_DIFFERENCE(a, b, t, v, vres) \ - VERIFY (INT_SUBTRACT_OVERFLOW (a, b) == (v)) - #define CHECK_SDIFFERENCE(a, b, t, v, vres) \ - CHECK_DIFFERENCE(a, b, t, v, vres); \ - { \ - t result; \ - ASSERT (INT_SUBTRACT_WRAPV (a, b, &result) == (v)); \ - ASSERT (result == ((v) ? (vres) : ((a) - (b)))); \ - } - CHECK_DIFFERENCE (INT_MAX, 1u, unsigned int, UINT_MAX < INT_MAX - 1, - INT_MAX - 1u); - CHECK_DIFFERENCE (UINT_MAX, 1, unsigned int, false, UINT_MAX - 1); - CHECK_DIFFERENCE (0u, -1, unsigned int, false, 0u - -1); - CHECK_DIFFERENCE (UINT_MAX, -1, unsigned int, true, UINT_MAX - -1); - CHECK_DIFFERENCE (INT_MIN, 1u, unsigned int, true, INT_MIN - 1u); - CHECK_DIFFERENCE (-1, 0u, unsigned int, true, -1 - 0u); - CHECK_SDIFFERENCE (-1, INT_MIN, int, false, -1 - INT_MIN); - CHECK_SDIFFERENCE (-1, INT_MAX, int, false, -1 - INT_MAX); - CHECK_SDIFFERENCE (0, INT_MIN, int, INT_MIN < -INT_MAX, INT_MIN); - CHECK_SDIFFERENCE (0, INT_MAX, int, false, 0 - INT_MAX); - { - long int result; - ASSERT (INT_SUBTRACT_WRAPV (INT_MAX, -1, &result) == (INT_MAX == LONG_MAX)); - ASSERT (INT_SUBTRACT_WRAPV (INT_MIN, 1, &result) == (INT_MAX == LONG_MAX)); - } - - #define CHECK_PRODUCT(a, b, t, v, vres) \ - CHECK_PRODUCT1(a, b, t, v, vres); \ - CHECK_PRODUCT1(b, a, t, v, vres) - #define CHECK_SPRODUCT(a, b, t, v, vres) \ - CHECK_SPRODUCT1(a, b, t, v, vres); \ - CHECK_SPRODUCT1(b, a, t, v, vres) - #define CHECK_PRODUCT1(a, b, t, v, vres) \ - VERIFY (INT_MULTIPLY_OVERFLOW (a, b) == (v)) - #define CHECK_SPRODUCT1(a, b, t, v, vres) \ - CHECK_PRODUCT1(a, b, t, v, vres); \ - { \ - t result; \ - ASSERT (INT_MULTIPLY_WRAPV (a, b, &result) == (v)); \ - ASSERT (result == ((v) ? (vres) : ((a) * (b)))); \ - } - CHECK_PRODUCT (-1, 1u, unsigned int, true, -1 * 1u); - CHECK_SPRODUCT (-1, INT_MIN, int, INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); - CHECK_PRODUCT (-1, UINT_MAX, unsigned int, true, -1 * UINT_MAX); - CHECK_SPRODUCT (-32768, LONG_MAX / -32768 - 1, long int, true, LONG_MIN); - CHECK_SPRODUCT (-12345, LONG_MAX / -12345, long int, false, DONTCARE); - CHECK_SPRODUCT (0, -1, int, false, DONTCARE); - CHECK_SPRODUCT (0, 0, int, false, DONTCARE); - CHECK_PRODUCT (0, 0u, unsigned int, false, DONTCARE); - CHECK_SPRODUCT (0, 1, int, false, DONTCARE); - CHECK_SPRODUCT (0, INT_MAX, int, false, DONTCARE); - CHECK_SPRODUCT (0, INT_MIN, int, false, DONTCARE); - CHECK_PRODUCT (0, UINT_MAX, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, -1, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, 0, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, 0u, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, 1, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, INT_MAX, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, INT_MIN, unsigned int, false, DONTCARE); - CHECK_PRODUCT (0u, UINT_MAX, unsigned int, false, DONTCARE); - CHECK_SPRODUCT (1, INT_MAX, int, false, DONTCARE); - CHECK_SPRODUCT (1, INT_MIN, int, false, DONTCARE); - CHECK_PRODUCT (1, UINT_MAX, unsigned int, false, DONTCARE); - CHECK_PRODUCT (1u, INT_MIN, unsigned int, true, 1u * INT_MIN); - CHECK_PRODUCT (1u, INT_MAX, unsigned int, UINT_MAX < INT_MAX, 1u * INT_MAX); - CHECK_PRODUCT (INT_MAX, UINT_MAX, unsigned int, true, INT_MAX * UINT_MAX); - CHECK_PRODUCT (INT_MAX, ULONG_MAX, unsigned long int, true, - INT_MAX * ULONG_MAX); - CHECK_SPRODUCT (INT_MIN, LONG_MAX / INT_MIN - 1, long int, true, LONG_MIN); - CHECK_SPRODUCT (INT_MIN, LONG_MAX / INT_MIN, long int, false, DONTCARE); - CHECK_PRODUCT (INT_MIN, UINT_MAX, unsigned int, true, INT_MIN * UINT_MAX); - CHECK_PRODUCT (INT_MIN, ULONG_MAX, unsigned long int, true, - INT_MIN * ULONG_MAX); - { - long int result; - ASSERT (INT_MULTIPLY_WRAPV (INT_MAX, INT_MAX, &result) - == (LONG_MAX / INT_MAX < INT_MAX)); - ASSERT (INT_MULTIPLY_WRAPV (INT_MAX, INT_MAX, &result) - || result == INT_MAX * (long int) INT_MAX); - ASSERT (INT_MULTIPLY_WRAPV (INT_MIN, INT_MIN, &result) - || result == INT_MIN * (long int) INT_MIN); - } - -# ifdef LLONG_MAX - { - long long int result; - ASSERT (INT_MULTIPLY_WRAPV (LONG_MAX, LONG_MAX, &result) - == (LLONG_MAX / LONG_MAX < LONG_MAX)); - ASSERT (INT_MULTIPLY_WRAPV (LONG_MAX, LONG_MAX, &result) - || result == LONG_MAX * (long long int) LONG_MAX); - ASSERT (INT_MULTIPLY_WRAPV (LONG_MIN, LONG_MIN, &result) - || result == LONG_MIN * (long long int) LONG_MIN); - } -# endif - - #define CHECK_QUOTIENT(a, b, v) VERIFY (INT_DIVIDE_OVERFLOW (a, b) == (v)) - - CHECK_QUOTIENT (INT_MIN, -1L, INT_MIN == LONG_MIN); - CHECK_QUOTIENT (INT_MIN, UINT_MAX, false); - CHECK_QUOTIENT (INTMAX_MIN, UINTMAX_MAX, false); - CHECK_QUOTIENT (INTMAX_MIN, UINT_MAX, false); - CHECK_QUOTIENT (-11, 10u, true); - CHECK_QUOTIENT (-10, 10u, true); - CHECK_QUOTIENT (-9, 10u, false); - CHECK_QUOTIENT (11u, -10, true); - CHECK_QUOTIENT (10u, -10, true); - CHECK_QUOTIENT (9u, -10, false); - - #define CHECK_REMAINDER(a, b, v) VERIFY (INT_REMAINDER_OVERFLOW (a, b) == (v)) - - CHECK_REMAINDER (INT_MIN, -1L, INT_MIN == LONG_MIN); - CHECK_REMAINDER (-1, UINT_MAX, true); - CHECK_REMAINDER ((intmax_t) -1, UINTMAX_MAX, true); - CHECK_REMAINDER (INTMAX_MIN, UINT_MAX, - (INTMAX_MAX < UINT_MAX - && - (unsigned int) INTMAX_MIN % UINT_MAX != 0)); - CHECK_REMAINDER (INT_MIN, ULONG_MAX, INT_MIN % ULONG_MAX != 1); - CHECK_REMAINDER (1u, -1, false); - CHECK_REMAINDER (37*39u, -39, false); - CHECK_REMAINDER (37*39u + 1, -39, true); - CHECK_REMAINDER (37*39u - 1, -39, true); - CHECK_REMAINDER (LONG_MAX, -INT_MAX, false); - - return 0; -} |