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80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
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/*
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Copyright 2020 The cc65 Authors
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/*
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Tests of bit-field signedness with typedefs; see https://github.com/cc65/cc65/issues/1267
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*/
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#include <stdio.h>
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static unsigned char failures = 0;
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typedef int i16;
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typedef unsigned int u16;
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typedef signed int s16;
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static struct ints {
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i16 i : 4;
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u16 u : 4;
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s16 s : 4;
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} si = {1, 2, 3};
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static void test_bitfield_typedefs (void)
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{
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if (si.i != 1) {
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/* Note that this is another bug that i is signed. */
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printf ("Got si.a = %d, expected 1.\n", si.i);
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failures++;
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}
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if (si.u != 2) {
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printf ("Got si.u = %u, expected 2.\n", si.u);
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failures++;
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}
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if (si.s != 3) {
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printf ("Got si.s = %d, expected 3.\n", si.s);
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failures++;
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}
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si.i = -1;
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si.u = -2;
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si.s = -3;
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/* Note that this is another bug that i is signed. */
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if (si.i != -1) {
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printf ("Got si.a = %d, expected -1.\n", si.i);
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failures++;
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}
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if (si.u != 14) {
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printf ("Got si.u = %u, expected 14.\n", si.u);
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failures++;
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}
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if (si.s != -3) {
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printf ("Got si.s = %d, expected -3.\n", si.s);
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failures++;
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}
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}
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int main (void)
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{
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test_bitfield_typedefs ();
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printf ("failures: %u\n", failures);
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return failures;
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}
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