Str.asciiToupper

Convert a character to ASCII upper case. Unlike the standard C library toupper() function, this only recognizes standard ASCII letters and ignores the locale, returning all non-ASCII characters unchanged, even if they are upper case letters in a particular character set. Also unlike the standard library function, this takes and returns a char, not an int, so don't call it on EOF but no need to worry about casting to guchar before passing a possibly non-ASCII character in.

class Str
static
char
asciiToupper
(
char c
)

Parameters

c char

any character.

Return Value

Type: char

the result of converting c to upper case. If c is not an ASCII lower case letter, c is returned unchanged.

Meta