mirror of
https://github.com/cc65/cc65.git
synced 2024-11-20 12:32:58 +00:00
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/*
|
|
Copyright 2020 Google LLC
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
/*
|
|
Tests of signed bit-fields; see https://github.com/cc65/cc65/issues/1095
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
static unsigned char failures = 0;
|
|
|
|
static struct signed_ints {
|
|
signed int a : 3;
|
|
signed int b : 3;
|
|
signed int c : 3;
|
|
} si = {-4, -1, 3};
|
|
|
|
static void test_signed_bitfield(void)
|
|
{
|
|
if (si.a >= 0) {
|
|
printf("Got si.a = %d, expected negative.\n", si.a);
|
|
failures++;
|
|
}
|
|
if (si.a != -4) {
|
|
printf("Got si.a = %d, expected -4.\n", si.a);
|
|
failures++;
|
|
}
|
|
|
|
if (si.b >= 0) {
|
|
printf("Got si.b = %d, expected negative.\n", si.b);
|
|
failures++;
|
|
}
|
|
if (si.b != -1) {
|
|
printf("Got si.b = %d, expected -1.\n", si.b);
|
|
failures++;
|
|
}
|
|
|
|
if (si.b <= 0) {
|
|
printf("Got si.c = %d, expected positive.\n", si.c);
|
|
failures++;
|
|
}
|
|
if (si.c != 3) {
|
|
printf("Got si.c = %d, expected 3.\n", si.c);
|
|
failures++;
|
|
}
|
|
|
|
si.a = -3;
|
|
si.b = 1;
|
|
si.c = -2;
|
|
|
|
if (si.a >= 0) {
|
|
printf("Got si.a = %d, expected negative.\n", si.a);
|
|
failures++;
|
|
}
|
|
if (si.a != -3) {
|
|
printf("Got si.a = %d, expected -3.\n", si.a);
|
|
failures++;
|
|
}
|
|
|
|
if (si.b <= 0) {
|
|
printf("Got si.b = %d, expected positive.\n", si.b);
|
|
failures++;
|
|
}
|
|
if (si.b != 1) {
|
|
printf("Got si.b = %d, expected 1.\n", si.b);
|
|
failures++;
|
|
}
|
|
|
|
if (si.b >= 0) {
|
|
printf("Got si.c = %d, expected negative.\n", si.c);
|
|
failures++;
|
|
}
|
|
if (si.c != -2) {
|
|
printf("Got si.c = %d, expected -2.\n", si.c);
|
|
failures++;
|
|
}
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
test_signed_bitfield();
|
|
printf("failures: %u\n", failures);
|
|
return failures;
|
|
}
|