_tolower (3p) - transliterate uppercase characters to lowercase
atol (3) - convert a string to an integer
atol (3p) - convert a string to a long integer
atoll (3) - convert a string to an integer
AutoLoader (3pm) - load subroutines only on demand
AutoSplit (3pm) - split a package for autoloading
htole16 (3) - convert values between host and big-/little-endian byt...
htole32 (3) - convert values between host and big-/little-endian byt...
htole64 (3) - convert values between host and big-/little-endian byt...
Mail::SpamAssassin::Plugin::AutoLearn... (3pm) - threshold-based discriminato...
strtol (3) - convert a string to a long integer
strtol (3p) - convert a string to a long integer
strtold (3) - convert ASCII string to floating-point number
strtold (3p) - convert a string to a double-precision number
strtoll (3) - convert a string to a long integer
strtoll (3p) - convert a string to a long integer
tolower (3) - convert uppercase or lowercase
tolower (3p) - transliterate uppercase characters to lowercase
tolower_l (3) - convert uppercase or lowercase
wcstol (3p) - convert a wide-character string to a long integer
wcstold (3p) - convert a wide-character string to a double-precision ...
wcstoll (3p) - convert a wide-character string to a long integer