strcat, strcatn, strcmp, strcmpn, strcpy, strcpyn, strlen, index, rindex \- string operations
.B char *strcatn(s1, s2, n)
.B char *strcpyn(s1, s2, n)
These functions operate on null-terminated strings.
They do not check for overflow of any receiving string.
Both return a pointer to the null-terminated result.
compares its arguments and returns an integer
greater than, equal to, or less than 0,
is lexicographically greater than, equal to, or
makes the same comparison but looks at at most
stopping after the null character has been moved.
truncating or null-padding
the target may not be null-terminated if the length
returns the number of non-null characters in
returns a pointer to the first (last)
does not occur in the string.
uses native character comparison, which is signed
on PDP11's and VAX-11's, unsigned on other machines.