ascii_up

Description:

public string ascii_up (ssize_t len = -1)

Converts all lower case ASCII letters to upper case ASCII letters.

Parameters:

len	length of `str` in bytes, or -1 if `str` is nul-terminated
str	a string

Returns:

a newly allocated string, with all the lower case characters in str converted to upper case, with semantics that exactly match toupper. (Note that this is unlike the old g_strup, which modified the string in place.)