mirror of https://github.com/cc65/cc65.git
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
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/* issue #1462 - Bit-fields are still broken */
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/* More tests on "op= expression result value" that a naive fix might fail with */
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#include <stdio.h>
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#include <limits.h>
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#define SMALL_WIDTH 4
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#define LARGE_WIDTH (CHAR_BIT * sizeof (unsigned int))
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typedef struct {
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unsigned int a : SMALL_WIDTH;
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unsigned int b : SMALL_WIDTH;
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unsigned int c : SMALL_WIDTH;
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unsigned int d : SMALL_WIDTH;
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} T1;
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typedef struct {
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unsigned int a : LARGE_WIDTH;
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unsigned int b : LARGE_WIDTH;
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unsigned int c : LARGE_WIDTH;
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unsigned int d : LARGE_WIDTH;
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} T2;
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int failures1 = 0;
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int failures2 = 0;
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void test1(void)
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{
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T1 a = { 0, 0, 0, 0 };
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printf("\nunsigned int : %d\n", SMALL_WIDTH);
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if (!(~a.a < 0)) {
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++failures1;
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}
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printf("~a.a < 0 : %d\n", ~a.a < 0);
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if (!(0 > ~a.b)) {
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++failures1;
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}
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printf("0 > ~a.b : %d\n",0 > ~a.b);
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if (!(a.c > -1)) {
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++failures1;
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}
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printf("a.c > -1 : %d\n", a.c > -1);
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if (!(-1 < a.d)) {
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++failures1;
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}
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printf("-1 < a.d : %d\n", -1 < a.d);
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printf("Failures: %d\n", failures1);
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}
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void test2(void)
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{
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T1 b = { 0, 0, 0, 0 };
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printf("\nunsigned int : %d\n", LARGE_WIDTH);
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if (!(~b.a < 0)) {
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++failures2;
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}
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printf("~b.a < 0 : %d\n", ~b.a < 0);
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if (!(0 > ~b.b)) {
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++failures2;
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}
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printf("0 > ~b.b : %d\n", 0 > ~b.b);
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if (!(b.c > -1)) {
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++failures2;
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}
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printf("b.c > -1 : %d\n", b.c > -1);
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if (!(-1 < b.d)) {
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++failures2;
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}
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printf("-1 < b.d : %d\n", -1 < b.d);
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printf("Failures: %d\n", failures2);
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}
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int main(void)
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{
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test1();
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test2();
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return failures1 + failures2;
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}
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