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Refrain from doing exhaustive iteration over all values of integers
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@ -10,14 +10,40 @@
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#include <stdint.h>
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#include <limits.h>
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/** Check that all values of int can be cast to void * and back. */
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/** Assert that <b>a</b> can be cast to void * and back. */
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static void
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assert_int_voidptr_roundtrip(int a)
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{
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intptr_t ap = (intptr_t)a;
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void *b = (void *)ap;
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intptr_t c = (intptr_t)b;
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void *d = (void *)c;
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tt_assert(ap == c);
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tt_assert(b == d);
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done:
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return;
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}
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static void
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test_int_voidstar_interop(void *arg)
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{
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int a;
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(void)arg;
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for (a = INT_MIN; a < INT_MAX; a++) {
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for (a = 0; a <= 1024; a++) {
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assert_int_voidptr_roundtrip(a);
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}
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for (a = INT_MAX-1024; a < INT_MAX; a++) {
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assert_int_voidptr_roundtrip(a);
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}
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}
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static void
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assert_uint_voidptr_roundtrip(unsigned int a)
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{
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intptr_t ap = (intptr_t)a;
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void *b = (void *)ap;
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intptr_t c = (intptr_t)b;
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@ -25,31 +51,24 @@ test_int_voidstar_interop(void *arg)
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tt_assert(ap == c);
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tt_assert(b == d);
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}
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done:
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return;
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}
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/** Check that all values of unsigned int can be cast to void * and back. */
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static void
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test_uint_voidstar_interop(void *arg)
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{
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unsigned int a;
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(void)arg;
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for (a = 0; a < UINT_MAX; a++) {
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intptr_t ap = (intptr_t)a;
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void *b = (void *)ap;
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intptr_t c = (intptr_t)b;
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void *d = (void *)c;
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tt_assert(ap == c);
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tt_assert(b == d);
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for (a = 0; a <= 1024; a++) {
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assert_uint_voidptr_roundtrip(a);
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}
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done:
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return;
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for (a = UINT_MAX-1024; a < UINT_MAX; a++) {
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assert_uint_voidptr_roundtrip(a);
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}
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}
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struct testcase_t slow_ptr_tests[] = {
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