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/*
* check for the correct signness of a char constant
* (signed versus unsigned)
* (indirect via integer promotion)
*
* Note, the check for the --funsigned-char must be invoked by hand
* see the following emacs sexp
* (compile "SDCCFLAGS=--funsigned-char make -C .. ALL_TESTS='./tests/funsigned-char.c'")
* (compile "make -C .. ALL_TESTS='./tests/funsigned-char.c'")
*
*/
#include <testfwk.h>
#include <stdint.h>
#include <limits.h>
int glb_schar_to_int = ~ (signed char) '\200';
int glb_uchar_to_int = ~ (unsigned char) '\200';
int glb_char_to_int = ~ '\200';
int tst_schar_to_int() { return ~ (signed char) '\200'; }
int tst_uchar_to_int() { return ~ (unsigned char) '\200'; }
int tst_char_to_int() { return ~ '\200'; }
void
testBug(void)
{
#if CHAR_MIN >= 0
ASSERT(CHAR_MAX == 255);
ASSERT(CHAR_MIN == 0);
#else
ASSERT(CHAR_MAX == 127);
ASSERT(CHAR_MIN == -128);
#endif
ASSERT(tst_uchar_to_int() == -129);
ASSERT(glb_uchar_to_int == -129);
ASSERT(tst_schar_to_int() == 127);
ASSERT(glb_schar_to_int == 127);
#if CHAR_MIN >= 0
ASSERT(tst_char_to_int() == -129);
ASSERT(glb_char_to_int == -129);
#else
ASSERT(tst_char_to_int() == 127);
ASSERT(glb_char_to_int == 127);
#endif
}
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