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#include <assert.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
int main() {
char buf[PATH_MAX];
char *ret = getcwd(buf, PATH_MAX);
assert(ret);
assert((strlen(ret) == strlen(buf)) && strlen(ret));
assert(!strcmp(ret, buf));
char *ret2 = getcwd(NULL, 0);
assert(ret2);
assert(strlen(ret2));
assert(!strcmp(ret, ret2));
free(ret2);
return 0;
}
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