#include <errno.h>
#include <stdio.h>
//#include <stdint.h>
#include <inttypes.h>
#include <stdlib.h> // for posix_memalign()
void test()
{
char* buf;
int ret;
int align = 4096;
uintptr_t align2 = 4096;
int alc_size = 17;
char* buf2 = (char*)malloc(alc_size);
ret = posix_memalign((void**)&buf, align, alc_size);
if(ret){
errno = ret;
perror("posix_memalign");
return ;
}
printf("%p %llx\n", buf, (unsigned long long)buf);
printf("%llu %llu\n", (unsigned long long)buf % align, (unsigned long long)buf2 % align);
printf("%08" PRIdPTR ":" "%08" PRIdPTR "\n", (uintptr_t)buf % align2, (uintptr_t)buf2 % align2);
free(buf);
free(buf2);
}
int main()
{
test();
return 0;
}
work:[TestKit]$./test
0x1ca4000 1ca4000
0 16
00000000:00000016
