C examples for String:String Function
Check first letter of string input
#include <stdio.h> #include <string.h> // declares strcpy() #define SIZE 40/*from w w w . java2 s .com*/ #define LIM 5 char * s_gets(char * st, int n); int main(void){ char qwords[LIM][SIZE]; char temp[SIZE]; int i = 0; printf("Enter %d words beginning with q:\n", LIM); while (i < LIM && s_gets(temp, SIZE)) { if (temp[0] != 'q') printf("%s doesn't begin with q!\n", temp); else { strcpy(qwords[i], temp); i++; } } puts("Here are the words accepted:"); for (i = 0; i < LIM; i++) puts(qwords[i]); return 0; } char * s_gets(char * st, int n){ char * ret_val; int i = 0; ret_val = fgets(st, n, stdin); if (ret_val){ while (st[i] != '\n' && st[i] != '\0') i++; if (st[i] == '\n') st[i] = '\0'; else // must have words[i] == '\0' while (getchar() != '\n') continue; } return ret_val; }