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Made C's sizeof operator work with initialized void variables.

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Added regression tests that check cc65's handling of void variables.
This commit is contained in:
Greg King
2017-03-12 12:55:31 -04:00
parent a780df1fe1
commit 750a527100
7 changed files with 147 additions and 62 deletions
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69
testcode/lib/atari/displaylist.c
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@@ -1,59 +1,55 @@
/*
** testprogram for ANTIC instructions as defined in "_antic.h"
** test program for ANTIC instructions as defined in "_antic.h"
**
** 23-Feb-2017, Christian Krueger
*/
#include <conio.h>
#include <atari.h>
#include <peekpoke.h>
#include <string.h>
// code is only for testing purposes, as screen and display list are not aligned
// code is only for testing purposes, as screen and display list are not aligned,
// and jumps not set!
unsigned char DummyScreen[400];
void DisplayList = {
DL_BLK1,
DL_BLK2,
DL_BLK3,
DL_BLK4,
DL_BLK5,
DL_BLK6,
DL_BLK7,
DL_DLI(DL_BLK8),
DL_LMS(DL_CHR40x8x1),
DummyScreen,
DL_HSCROL(DL_CHR40x10x1),
DL_VSCROL(DL_CHR40x8x4),
DL_CHR40x16x4,
DL_LMS(DL_HSCROL(DL_VSCROL(DL_DLI(DL_CHR20x8x2)))),
DummyScreen+120,
DL_CHR20x16x2,
DL_MAP40x8x4,
DL_MAP80x4x2,
DL_MAP80x4x4,
DL_MAP160x2x2,
DL_MAP160x1x2,
DL_MAP160x2x4,
DL_MAP160x1x4,
DL_MAP320x1x1,
DL_JVB,
DL_JMP
DL_BLK1,
DL_BLK2,
DL_BLK3,
DL_BLK4,
DL_BLK5,
DL_BLK6,
DL_BLK7,
DL_DLI(DL_BLK8),
DL_LMS(DL_CHR40x8x1),
DummyScreen,
DL_HSCROL(DL_CHR40x10x1),
DL_VSCROL(DL_CHR40x8x4),
DL_CHR40x16x4,
DL_LMS(DL_HSCROL(DL_VSCROL(DL_DLI(DL_CHR20x8x2)))),
DummyScreen+120,
DL_CHR20x16x2,
DL_MAP40x8x4,
DL_MAP80x4x2,
DL_MAP80x4x4,
DL_MAP160x2x2,
DL_MAP160x1x2,
DL_MAP160x2x4,
DL_MAP160x1x4,
DL_MAP320x1x1,
DL_JVB,
DL_JMP
};
unsigned char dlend = 0;
/* We know that the sizeof expression is constant; don't tell us. */
#pragma warn (const-comparison, off)
int
main(void)
{
// unfortunately "sizeof()" doesn't work with void data
// (Error: Size of data type is unknown)
// so we trick with the addresses at front and end...
int returnValue = (((unsigned int)&dlend-(unsigned int)&DisplayList) != 28); // assure only one byte per instruction!
int returnValue = (sizeof DisplayList != 28); // assure only one byte per instruction!
clrscr();
if (returnValue)
@@ -66,4 +62,3 @@ main(void)
return returnValue;
}