The cstring Library
defined by header file string.h, should not be confused with the header file string.
strcpy(dest, src) Copy characters from source to destination
strncpy(dest, src, n) Copy exactly n characters
strcat(dest, src) Append characters from source onto destination
strncat(dest, src, n) Append only n characters
strcmp(s1, s2) Compare strings s1 and s2
strncmp(s1, s2, n) Compare first n characters in s1 and s2
strlen(s) Count number of characters in s