strcat() for formatted strings

Question

I\'m building a string piece by piece in my program and am currently using a mix of strcat() when I\'m adding a simple string onto the end, but when im adding a formatted string

Answer 1

Everything can be more simpler

void strfcat(char *src, char *fmt, ...)
{
    char buf[2048];
    va_list args;

    va_start(args, fmt);
    vsprintf(buf, fmt, args);
    va_end(args);

    strcat(src, buf);
}

Use it like strcat().

strfcat(dst, "%d:%s:%c\n", 4,"bla",'c');
strfcat(dst, "%d:%d:%c\n", 4,13,'s');