Convert string to Lowercase in C
main.c
main-vs.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int main(int argc, char *argv[]) {
char str[] = "This is an EXAMPLE String";
size_t length = strlen(str);
// int diff = ('a' - 'A');
for (size_t i = 0; i < length; i++) {
// if (str[i] >= 'A' && str[i] <= 'Z') {
// str[i] += diff;
// }
if (isupper(str[i])) {
str[i] = tolower(str[i]);
}
}
printf("Result is: '%s'\n", str);
return 0;
}