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https://github.com/cc65/cc65.git
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112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
/*
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!!DESCRIPTION!! Make sure that structs/unions know the sizes of anonymous struct/union members
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!!ORIGIN!! cc65 regression tests
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!!LICENCE!! Public Domain
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!!AUTHOR!! Greg King
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*/
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/*
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see https://github.com/cc65/cc65/issues/641
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*/
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#include <stdio.h>
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static unsigned char fails = 0;
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typedef struct {
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short s1;
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struct {
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int i1;
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long l1;
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char c1;
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};
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char c2;
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} s1_t;
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typedef struct {
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short s1;
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union {
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int i1;
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long l1;
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char c1;
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};
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char c2;
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} s2_t;
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typedef union {
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short s1;
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struct {
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int i1;
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long l1;
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char c1;
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};
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char c2;
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} u1_t;
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typedef union {
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short s1;
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union {
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int i1;
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long l1;
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char c1;
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};
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char c2;
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} u2_t;
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static s1_t s1;
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static s2_t s2;
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static u1_t u1;
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static u2_t u2;
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/* We use "variables" in the comparisons, so that we can avoid "constant
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** comparison" and "Unreachable code" warnings (the second one currently
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** can't be suppressed).
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*/
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static size_t const four = 4;
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static size_t const seven = 7;
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static size_t const ten = 10;
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int main(void)
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{
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/* Check the types' sizes. */
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if (sizeof (s1_t) != ten) {
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printf("s1_t size is %u; it should be 10.\n", sizeof (s1_t));
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++fails;
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}
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if (sizeof (s2_t) != seven) {
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printf("s2_t size is %u; it should be 7.\n", sizeof (s2_t));
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++fails;
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}
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if (sizeof (u1_t) != seven) {
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printf("u1_t size is %u; it should be 7.\n", sizeof (u1_t));
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++fails;
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}
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if (sizeof (u2_t) != four) {
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printf("u2_t size is %u; it should be 4.\n", sizeof (u2_t));
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++fails;
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}
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/* Check the variables' sizes. */
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if (sizeof s1 != ten) {
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printf("s1 size is %u; it should be 10.\n", sizeof s1);
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++fails;
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}
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if (sizeof s2 != seven) {
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printf("s2 size is %u; it should be 7.\n", sizeof s2);
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++fails;
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}
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if (sizeof u1 != seven) {
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printf("u1 size is %u; it should be 7.\n", sizeof u1);
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++fails;
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}
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if (sizeof u2 != four) {
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printf("u2 size is %u; it should be 4.\n", sizeof u2);
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++fails;
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}
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return fails;
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}
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