Removing last character in C

Question

The program I am writing needs to remove an ampersand character if it is the last character of a string. For instance, if char* str contains "firefox&", then I need to remove the ampersand so that str contains "firefox". Does anyone know how to do this?

Answer 1

Just set the last char to be '\0':

str[strlen(str)-1] = '\0';

In C, \0 indicates a string ending.

Answer 2

Every string in C ends with '\0'. So you need do this:

int size = strlen(my_str); //Total size of string
my_str[size-1] = '\0';

This way, you remove the last char.