null terminating a string

Question

gcc 4.4.4 c89

What is the standard way to null terminate a string? When I use the NULL I get a warning message.

*dest++ = 0; 
*dest++ =          


        

Answer 1

Be very careful: NULL is a macro used mainly for pointers. The standard way of terminating a string is:

char *buffer;
...
buffer[end_position] = '\0';

This (below) works also but it is not a big difference between assigning an integer value to a int/short/long array and assigning a character value. This is why the first version is preferred and personally I like it better.

buffer[end_position] = 0;