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/* Test of tolower() function.
$Id: tolower-1.c,v 1.1.2.1 2008/03/20 21:42:38 joerg_wunsch Exp $
*/
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#ifndef __AVR__
# define PRINTFLN(fmt, ...) \
printf ("\nLine %d: " fmt "\n", __LINE__, ##__VA_ARGS__)
# define EXIT(code) exit ((code) < 255 ? (code) : 100 + (code) % 100)
#else
# if defined(__AVR_ATmega128__)
/* ATmega128 has enough RAM for sprintf(), print to 0x2000 in XRAM. */
# define PRINTFLN(fmt, ...) \
sprintf ((char *)0x2000, "\nLine %d: " fmt "\n", __LINE__, ##__VA_ARGS__)
# else
/* small AVR */
# define PRINTFLN(args...)
# endif
# define EXIT exit
#endif
int main ()
{
int i, v;
for (i = -1; i < 256; i++) {
v = tolower (i);
if (i >= 'A' && i <= 'Z') {
if (v != i + 'a' - 'A') {
PRINTFLN ("tolower(%#x) --> %#x", i, v);
EXIT (__LINE__);
}
} else {
if (v != i) {
PRINTFLN ("tolower(%#x) --> %#x", i, v);
EXIT (__LINE__);
}
}
}
/* Skip the host, as according to C standart it is not safety to use an
argument beyound -1..255 value. Avr-libc's ctype functions permit
this. */
#ifdef __AVR__
{
unsigned int u;
for (u = 0xffff; u > 0xff; u--)
if (u != (unsigned int)tolower (u))
EXIT (__LINE__);
}
#endif
return 0;
}
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