streq
#define streq(s1, s2) (strcmp(s1, s2) == 0)
streq(char *a, char *b)
#define streq(a, b) (strcmp((a), (b)) == 0)
#define streq(a, b) (strcmp((a), (b)) == 0)
#define streq(a, b) (strcmp((a), (b)) == 0)
#define streq(a,b) (*(a)==*(b)&&!strcmp(a,b))
#define streq(a, b) (strcmp((a), (b)) == 0)