C program to capitalize string not working -


so, assignment, had finish code meant capitalize string.

what tried this:

#include <stdio.h>  void capitalize(char *str) {     int = 0;     if (str[i] >= 97 && str[i] <= 122)     {         str[i] = str[i] - 32;     }     else     {         i++;     } }  void strcopy(char *str2, char *str1) {     while (*str2)     {       *str1 = *str2;       str2++;       str1++;     }     *str1 = '\0'; }  int main(int argc, char **argv) {     char string1[100] = "this long string!";     char string2[100];     strcopy(string1,string2);     capitalize(string2);     printf("the original string \"%s\"\n", string1);     printf("the capitalized string \"%s\"\n", string2); }

however, when tried running code returned:

the original string "this long string!"
capitalized string "this long string!"

strcopy not seem issue, copies string1 correctly string2.

i don't understand why capitalize not working, seems should going through letter letter , changing uppercase, if letter falls within ascii code lowercase letter.

i appreciate helping point out error is.

thanks in advance!

the problem capitilize function doesn't have loop. ever capitalize first letter of string.

you on right track looking this:

for (int = 0; str[i] != '\0'; ++i) { // here check end condition of string.                                        // ie. has null termination been reached?    if (str[i] >= 'a' && str[i] <= 'z') {       str[i] = str[i] - ('a' - 'a');    } }

here live demo play with!


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