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-rw-r--r--src/grep/gnulib-tests/test-intprops.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/src/grep/gnulib-tests/test-intprops.c b/src/grep/gnulib-tests/test-intprops.c
new file mode 100644
index 0000000..fff4218
--- /dev/null
+++ b/src/grep/gnulib-tests/test-intprops.c
@@ -0,0 +1,441 @@
+/* Test intprops.h.
+ Copyright (C) 2011-2021 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 <https://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"
+
+/* Compile-time verification of expression X.
+ In this file, we need it as a statement, rather than as a declaration. */
+#define verify_stmt(x) do { verify (x); } while (0)
+
+/* 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
+ <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00401.html>. */
+#if __GNUC__ || __clang__ || __SUNPRO_C
+# define VERIFY(x) verify_stmt (x)
+#else
+# define VERIFY(x) ASSERT (x)
+#endif
+
+#define DONTCARE __LINE__
+
+int int_minus_2 = -2;
+int int_1 = 1;
+
+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);
+ #ifdef LLONG_MAX
+ verify_stmt (TYPE_MINIMUM (long long int) == LLONG_MIN);
+ verify_stmt (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ verify_stmt (TYPE_MINIMUM (unsigned long long int) == 0);
+ verify_stmt (TYPE_MAXIMUM (unsigned long long int) == ULLONG_MAX);
+ #endif
+ 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);
+
+ /* TYPE_WIDTH. */
+ #ifdef CHAR_WIDTH
+ verify_stmt (TYPE_WIDTH (char) == CHAR_WIDTH);
+ verify_stmt (TYPE_WIDTH (signed char) == SCHAR_WIDTH);
+ verify_stmt (TYPE_WIDTH (unsigned char) == UCHAR_WIDTH);
+ verify_stmt (TYPE_WIDTH (short int) == SHRT_WIDTH);
+ verify_stmt (TYPE_WIDTH (unsigned short int) == USHRT_WIDTH);
+ verify_stmt (TYPE_WIDTH (int) == INT_WIDTH);
+ verify_stmt (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
+ verify_stmt (TYPE_WIDTH (long int) == LONG_WIDTH);
+ verify_stmt (TYPE_WIDTH (unsigned long int) == ULONG_WIDTH);
+ #ifdef LLONG_WIDTH
+ verify_stmt (TYPE_WIDTH (long long int) == LLONG_WIDTH);
+ verify_stmt (TYPE_WIDTH (unsigned long long int) == ULLONG_WIDTH);
+ #endif
+ #endif
+
+ /* 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);
+#if !defined __HP_cc
+ CHECK_SBINOP (*, MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX,
+ long int, false, LONG_MIN - LONG_MIN % INT_MAX);
+#endif
+
+ 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_SUM_WRAPV(a, b, t, v, vres, okres) \
+ CHECK_SUM_WRAPV1 (a, b, t, v, vres, okres); \
+ CHECK_SUM_WRAPV1 (b, a, t, v, vres, okres)
+ #define CHECK_SUM1(a, b, t, v, vres) \
+ VERIFY (INT_ADD_OVERFLOW (a, b) == (v)); \
+ CHECK_SUM_WRAPV1 (a, b, t, v, vres, (a) + (b))
+ #define CHECK_SUM_WRAPV1(a, b, t, v, vres, okres) \
+ { \
+ t result; \
+ ASSERT (INT_ADD_WRAPV (a, b, &result) == (v)); \
+ ASSERT (result == ((v) ? (vres) : (okres))); \
+ }
+ CHECK_SUM (-1, LONG_MIN, long int, true, LONG_MAX);
+ CHECK_SUM (-1, UINT_MAX, unsigned int, false, DONTCARE);
+ CHECK_SUM (-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_SUM (1, LONG_MAX, long int, true, LONG_MIN);
+ CHECK_SUM (1, UINT_MAX, unsigned int, true, 0u);
+ CHECK_SUM (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);
+ CHECK_SUM_WRAPV (-1, 1u, int, false, DONTCARE, 0);
+ CHECK_SUM_WRAPV (-1, 1ul, int, false, DONTCARE, 0);
+ CHECK_SUM_WRAPV (-1l, 1u, int, false, DONTCARE, 0);
+ CHECK_SUM_WRAPV (-100, 1000u, int, false, DONTCARE, 900);
+ CHECK_SUM_WRAPV (INT_MIN, UINT_MAX, int, false, DONTCARE, INT_MAX);
+ CHECK_SUM_WRAPV (1u, INT_MAX, int, true, INT_MIN, DONTCARE);
+ CHECK_SUM_WRAPV (INT_MAX, 1, long int, LONG_MAX <= INT_MAX, INT_MIN,
+ INT_MAX + 1L);
+ CHECK_SUM_WRAPV (UINT_MAX, 1, long int, LONG_MAX <= UINT_MAX, 0,
+ UINT_MAX + 1L);
+ CHECK_SUM_WRAPV (INT_MAX, 1, unsigned long int, ULONG_MAX <= INT_MAX, 0,
+ INT_MAX + 1uL);
+ CHECK_SUM_WRAPV (UINT_MAX, 1, unsigned long int, ULONG_MAX <= UINT_MAX, 0,
+ UINT_MAX + 1uL);
+
+ {
+ 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); \
+ CHECK_SDIFFERENCE_WRAPV (a, b, t, v, vres)
+ #define CHECK_SDIFFERENCE_WRAPV(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);
+ CHECK_SDIFFERENCE_WRAPV (-1, 1u, int, false, DONTCARE);
+ CHECK_SDIFFERENCE_WRAPV (-1, 1ul, int, false, DONTCARE);
+ CHECK_SDIFFERENCE_WRAPV (-1l, 1u, int, false, DONTCARE);
+ CHECK_SDIFFERENCE_WRAPV (0u, INT_MAX, int, false, DONTCARE);
+ CHECK_SDIFFERENCE_WRAPV (1u, INT_MIN, int, true, 1u - INT_MIN);
+ {
+ 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_SPRODUCT_WRAPV(a, b, t, v, vres) \
+ CHECK_SPRODUCT_WRAPV1 (a, b, t, v, vres); \
+ CHECK_SPRODUCT_WRAPV1 (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); \
+ CHECK_SPRODUCT_WRAPV1 (a, b, t, v, vres)
+ #define CHECK_SPRODUCT_WRAPV1(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);
+#if !defined __HP_cc
+ 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);
+#endif
+ 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);
+ CHECK_SPRODUCT_WRAPV (-1, INT_MAX + 1u, int, false, DONTCARE);
+ CHECK_SPRODUCT_WRAPV (-1, 1u, int, false, DONTCARE);
+ CHECK_SPRODUCT (0, ULONG_MAX, int, false, DONTCARE);
+ CHECK_SPRODUCT (0u, LONG_MIN, int, false, DONTCARE);
+ {
+ 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
+
+ /* Check for GCC bug 91450. */
+ {
+ unsigned long long result;
+ ASSERT (INT_MULTIPLY_WRAPV (int_minus_2, int_1, &result) && result == -2);
+ }
+
+ #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;
+}