Convert a string to uppercase
String_Type strup (String_Type s)
The strup function takes a string s and returns another
string identical to s except that all lower case characters
that comprise s will be converted to upper case.
The function
define Strcmp (a, b)
{
return strcmp (strup (a), strup (b));
}
performs a case-insensitive comparison operation of two strings by
converting them to upper case first.
strlow, toupper, strcmp, strtrim, define_case