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Compare operator test suite: forward and reverse compares; edge and corner cases; literals, autos, statics, simple expressions; signed and unsigned; some special cases.

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Alex Volkov
2026-03-09 20:04:59 -04:00
parent d45fac3afe
commit 76d71aec92
16 changed files with 3906 additions and 0 deletions
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test/val/compare-rev22.c Normal file
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/* Exercise compare operator edge cases in forward and reverse forms;
** unsigned char: autos, signed statics.
**
** License: Public Domain
**
** 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.
*/
#include <stdio.h>
#include <stdlib.h>
#define TEST_NAME "compare-rev22"
#include "compare-rev.h"
static int stat_i_m32768 = -32767-1;
static int stat_i_m32767 = -32767;
static int stat_i_m257 = -257;
static int stat_i_m256 = -256;
static int stat_i_m255 = -255;
static int stat_i_m1 = -1;
static int stat_i_0 = 0;
static int stat_i_1 = 1;
static int stat_i_255 = 255;
static int stat_i_256 = 256;
static int stat_i_257 = 257;
static int stat_i_32767 = 32767;
/* Compared values are signed int statics */
#define N32768 stat_i_m32768
#define N32767 stat_i_m32767
#define N257 stat_i_m257
#define N256 stat_i_m256
#define N255 stat_i_m255
#define N1 stat_i_m1
#define ZERO stat_i_0
#define P1 stat_i_1
#define P255 stat_i_255
#define P256 stat_i_256
#define P257 stat_i_257
#define P32767 stat_i_32767
/* unsigned char to signed int statics compares */
static void uchar_loc_to_sstat_11(void)
{
unsigned char v;
v = 0;
marker = 0x1100; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, N32768);
MUST_BE_GREATER_THAN(v, N32767);
MUST_BE_GREATER_THAN(v, N257);
MUST_BE_GREATER_THAN(v, N256);
MUST_BE_GREATER_THAN(v, N255);
MUST_BE_GREATER_THAN(v, N1);
MUST_BE_EQUAL(v, ZERO);
MUST_BE_LESS_THAN(v, P1);
MUST_BE_LESS_THAN(v, P255);
MUST_BE_LESS_THAN(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
}
static void uchar_loc_to_sstat_13(void)
{
unsigned char v;
v = 1;
marker = 0x1300; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, N32768);
MUST_BE_GREATER_THAN(v, N32767);
MUST_BE_GREATER_THAN(v, N257);
MUST_BE_GREATER_THAN(v, N256);
MUST_BE_GREATER_THAN(v, N255);
MUST_BE_GREATER_THAN(v, N1);
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_EQUAL(v, P1);
MUST_BE_LESS_THAN(v, P255);
MUST_BE_LESS_THAN(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
}
static void uchar_loc_to_sstat_15(void)
{
unsigned char v;
v = 2;
marker = 0x1500; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, N32768);
MUST_BE_GREATER_THAN(v, N32767);
MUST_BE_GREATER_THAN(v, N257);
MUST_BE_GREATER_THAN(v, N256);
MUST_BE_GREATER_THAN(v, N255);
MUST_BE_GREATER_THAN(v, N1);
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_LESS_THAN(v, P255);
MUST_BE_LESS_THAN(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
}
static void uchar_loc_to_sstat_17(void)
{
unsigned char v;
v = 254;
marker = 0x1700; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, N32768);
MUST_BE_GREATER_THAN(v, N32767);
MUST_BE_GREATER_THAN(v, N257);
MUST_BE_GREATER_THAN(v, N256);
MUST_BE_GREATER_THAN(v, N255);
MUST_BE_GREATER_THAN(v, N1);
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_LESS_THAN(v, P255);
MUST_BE_LESS_THAN(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
}
static void uchar_loc_to_sstat_19(void)
{
unsigned char v;
v = 255;
marker = 0x1900; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, N32768);
MUST_BE_GREATER_THAN(v, N32767);
MUST_BE_GREATER_THAN(v, N257);
MUST_BE_GREATER_THAN(v, N256);
MUST_BE_GREATER_THAN(v, N255);
MUST_BE_GREATER_THAN(v, N1);
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_EQUAL(v, P255);
MUST_BE_LESS_THAN(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
}
int main(void)
{
marker = 0x01;
uchar_loc_to_sstat_11();
uchar_loc_to_sstat_13();
uchar_loc_to_sstat_15();
uchar_loc_to_sstat_17();
uchar_loc_to_sstat_19();
printf(TEST_NAME " failures: %d\n", failures);
return failures ? EXIT_FAILURE : EXIT_SUCCESS;
}