strncpy() also zero pads the entire buffer. If it's significantly larger than the copied string you're wasting cycles on pointless move operations for normal, l

strncpy() also zero pads the entire buffer. If it's significantly larger than the copied string you're wasting cycles on pointless move operations for normal, low-security string handling. This behavior is for filling in fixed length fields in data structures. It isn't suitable for general purpose string processing.