convert uppercase or lowercase NAME toupper, tolower, toupper_l, tolower_l - convert uppercase or lowercase LIBRARY Standard C librar...convert uppercase or lowercase NAME toupper, tolower, toupper_l, tolower_l - convert uppercase or lowercase LIBRARY Standard C librar...convert uppercase or lowercase NAME toupper, tolower, toupper_l, tolower_l - convert uppercase or lowercase LIBRARY Standard C librar...convert uppercase or lowercase NAME toupper, tolower, toupper_l, tolower_l - convert uppercase or lowercase LIBRARY Standard C librar......the current locale which can used in other functions that employ a locale handle, such as toupper_l (3). This is done by applying duplocale () to the value returned by the follo…...e following names are valid in all locales. "tolower" - realizes the tolower (3) mapping "toupper" - realizes the toupper (3) mapping RETURN VALUE The wctrans () function return…...will convert accented letters into random characters. SEE ALSO isascii (3), tolower (3), toupper (3)...behavior of the character handling and classification functions, such as isupper (3) and toupper (3), and the multibyte character functions such as mblen (3) or wctomb (3). LC_I…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…...char , it must be cast to unsigned char , as in the following example: char c; ... res = toupper((unsigned char) c); This is necessary because char may be the equivalent of sign…