1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
#include <stdio.h>
#include <stdlib.h>
typedef union _mm_align_test {
void *ptr;
double dbl;
long lng;
} mm_align_test;
#if (defined (__GNUC__) && __GNUC__ >= 2)
#define ZEND_MM_ALIGNMENT (__alignof__ (mm_align_test))
#else
#define ZEND_MM_ALIGNMENT (sizeof(mm_align_test))
#endif
int main(void)
{
size_t i = ZEND_MM_ALIGNMENT;
int zeros = 0;
FILE *fp;
while (i & ~0x1) {
zeros++;
i = i >> 1;
}
fp = fopen("conftest.zend", "w");
fprintf(fp, "(size_t)%zu (size_t)%d %d\n",
ZEND_MM_ALIGNMENT, zeros, ZEND_MM_ALIGNMENT < 4);
fclose(fp);
printf("=====%ld\n", __alignof__ (mm_align_test));
printf("=====%ld\n", sizeof(mm_align_test));
return 0;
}
|
