c - Converting string from lowercase to uppercase seg fault -


this question has answer here:

i trying convert string has been passed function lowercase uppercase. keep getting seg fault, , cannot determine why.

void uppercase(char* input) {     int str_size = strlen(input);     char *string = input;     (int = 0; < str_size; i++)     {       string[i] += -32;       printf("%c", string[i]);     }     return; }

function calling function uppercase:

#include <stdio.h> #include <string.h>  int main(void) {    uppercase("max");    return(0);  }

as @dasblinkenlight said, cannot modify string literal.

try instead:

int main(void) {   char str[4] = "max";   uppercase(str);    return(0); }

or can malloc string , pass in.


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