Append Char To String in C?

Question

How do I append a single char to a string in C?

i.e

char* str = \"blablabla\";
char c = \'H\';
str_append(str,c); /* blablablaH */

Answer 1

Easiest way to append two strings:

char * append(char * string1, char * string2)
{
    char * result = NULL;
    asprintf(&result, "%s%s", string1, string2);
    return result;
}