string functions and operations

man string.h 명령어를 사용하여 함수에 대한 내용을 검색.

[leechul@~/C_Study]leechul vi 016-string-functions-and-operations.c #include <stdio.h> #include <string.h> int main(int argc, char *argv[]) {     char str[24];     char str2[24];     int i;     int n;     /* Example 1 */     sprintf(str, "Hello World!");     printf("%s\n",str);     /* Example 2 */     i = 4;     sprintf(str, "Value of i = %d", i);     printf("%s\n",str);         /* Example 3 */     n = strlen(str);     printf("length of str is %d\n", n);     /* Example 4 */     strcpy (str2, str);     printf("str = %s\n",str);     printf("str2 = %s\n", str2);     /*Example 5 */     memset(str, 0, 24);     printf(">%s<\n", str);     memset(str, 'a', 5);     printf(">%s<\n", str);          return 0; }

[leechul@leechul C_Study]$ gcc 016-string-functions-and-operations.c -o 016-string-functions-and-operations.o

[leechul@leechul C_Study]$ ./016-string-functions-and-operations.o  Hello World! Value of i = 4 length of str is 14 str = Value of i = 4 str2 = Value of i = 4 >< >aaaaa<