blob: a3481200293719f2af7ed7f6ab71699aa5a27559 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
#include "_ctype.h"
/** convert a lowercase letter to uppercase **/
int toupper(int c)
{
unsigned char *map = __get_locale()->lc_ctype.ctoupper;
SIGNAL_SAFE(0);
ASSERT_REPRESENTABLE(c, 0, UCHAR_MAX, unsigned char, EOF);
return c == EOF ? EOF : map[c];
}
CHECK_1(int, 0, toupper, int)
/***
converts a lowercase letter to its equivalent uppercase letter in the current
locale.
***/
/*
RETURN_SUCCESS(ARGUMENT(c) converted to uppercase)
RETURN_FAILURE(ARGUMENT(c), ARGUMENT(c) was not a lowercase letter or it has no equivalent upercase letter)
LC_CTYPE
STDC(1)
*/
|
