/* * Test bitops routines * * This work is licensed under the terms of the GNU LGPL, version 2 or later. * See the COPYING.LIB file in the top-level directory. * */ #include <glib.h> #include <stdint.h> #include "qemu/osdep.h" #include "qemu/bitops.h" typedef struct { uint32_t value; int start; int length; int32_t result; } S32Test; typedef struct { uint64_t value; int start; int length; int64_t result; } S64Test; static const S32Test test_s32_data[] = { { 0x38463983, 4, 4, -8 }, { 0x38463983, 12, 8, 0x63 }, { 0x38463983, 0, 32, 0x38463983 }, }; static const S64Test test_s64_data[] = { { 0x8459826734967223ULL, 60, 4, -8 }, { 0x8459826734967223ULL, 0, 64, 0x8459826734967223LL }, }; static void test_sextract32(void) { int i; for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { const S32Test *test = &test_s32_data[i]; int32_t r = sextract32(test->value, test->start, test->length); g_assert_cmpint(r, ==, test->result); } } static void test_sextract64(void) { int i; for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { const S32Test *test = &test_s32_data[i]; int64_t r = sextract64(test->value, test->start, test->length); g_assert_cmpint(r, ==, test->result); } for (i = 0; i < ARRAY_SIZE(test_s64_data); i++) { const S64Test *test = &test_s64_data[i]; int64_t r = sextract64(test->value, test->start, test->length); g_assert_cmpint(r, ==, test->result); } } int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); g_test_add_func("/bitops/sextract32", test_sextract32); g_test_add_func("/bitops/sextract64", test_sextract64); return g_test_run(); }