mirror of https://github.com/cc65/cc65.git
63 lines
888 B
C
63 lines
888 B
C
/* bug #264 - cc65 fails to warn about a function returning struct */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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typedef uint16_t u16;
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typedef uint8_t u8;
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typedef struct {
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u16 quot;
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u16 rem;
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} udiv_t;
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udiv_t div3(u16 in) {
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udiv_t u;
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u16 q = 0;
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while (in >= 300) {
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in -= 300;
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q += 100;
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}
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while (in >= 30) {
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in -= 30;
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q += 10;
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}
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while (in >= 3) {
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in -= 3;
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++q;
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}
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u.quot = q;
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u.rem = in;
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return u;
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}
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int res = 0;
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int main(void) {
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u16 i;
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div_t d;
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udiv_t u;
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for (i = 1024; i; i--) {
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d = div(i, 3);
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u = div3(i);
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if (d.quot != u.quot || d.rem != u.rem) {
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printf("Mismatch at %u/3, div %u %u, div3 %u %u\n", i,
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d.quot, d.rem, u.quot, u.rem);
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res++;
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}
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}
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return res;
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}
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