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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-rev33.c Normal file
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/* Exercise compare operator edge cases in forward and reverse forms;
** signed int: autos, unsigned statics.
** Note: will cause some compiler warnings:
** -- Result of comparison is constant
**
** 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-rev33"
#include "compare-rev.h"
static unsigned stat_u_0 = 0U;
static unsigned stat_u_1 = 1U;
static unsigned stat_u_255 = 255U;
static unsigned stat_u_256 = 256U;
static unsigned stat_u_257 = 257U;
static unsigned stat_u_32767 = 32767U;
static unsigned stat_u_32768 = 32768U;
static unsigned stat_u_65535 = 65535U;
/* Compared values are unsigned statics */
#define ZERO stat_u_0
#define P1 stat_u_1
#define P255 stat_u_255
#define P256 stat_u_256
#define P257 stat_u_257
#define P32767 stat_u_32767
#define P32768 stat_u_32768
#define P65535 stat_u_65535
/* signed int to unsigned statics compares */
static void sint_loc_to_ustat_11(void)
{
signed int v;
v = -32767-1;
marker = 0x1100; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
if (sizeof(v) == 2) {
MUST_BE_EQUAL(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_13(void)
{
signed int v;
v = -32767;
marker = 0x1300; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_15(void)
{
signed int v;
v = -257;
marker = 0x1500; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_17(void)
{
signed int v;
v = -256;
marker = 0x1700; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_19(void)
{
signed int v;
v = -255;
marker = 0x1900; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_1B(void)
{
signed int v;
v = -2;
marker = 0x1B00; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
}
static void sint_loc_to_ustat_1D(void)
{
signed int v;
v = -1;
marker = 0x1D00; /* +8 for each macro */
/* Special signed to unsigned promotion cases */
MUST_BE_GREATER_THAN(v, ZERO);
if (sizeof(v) == 2) {
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_GREATER_THAN(v, P32767);
MUST_BE_GREATER_THAN(v, P32768);
MUST_BE_EQUAL(v, P65535);
}
}
static void sint_loc_to_ustat_1F(void)
{
signed int v;
v = 0;
marker = 0x1F00; /* +8 for each macro */
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);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_21(void)
{
signed int v;
v = 1;
marker = 0x2100; /* +8 for each macro */
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);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_23(void)
{
signed int v;
v = 2;
marker = 0x2300; /* +8 for each macro */
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);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_25(void)
{
signed int v;
v = 255;
marker = 0x2500; /* +8 for each macro */
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);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_27(void)
{
signed int v;
v = 256;
marker = 0x2700; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_EQUAL(v, P256);
MUST_BE_LESS_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_29(void)
{
signed int v;
v = 257;
marker = 0x2900; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_EQUAL(v, P257);
MUST_BE_LESS_THAN(v, P32767);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_2B(void)
{
signed int v;
v = 32766;
marker = 0x2B00; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_LESS_THAN(v, P32767);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
static void sint_loc_to_ustat_2D(void)
{
signed int v;
v = 32767;
marker = 0x2D00; /* +8 for each macro */
MUST_BE_GREATER_THAN(v, ZERO);
MUST_BE_GREATER_THAN(v, P1);
MUST_BE_GREATER_THAN(v, P255);
MUST_BE_GREATER_THAN(v, P256);
MUST_BE_GREATER_THAN(v, P257);
MUST_BE_EQUAL(v, P32767);
MUST_BE_LESS_THAN(v, P32768);
MUST_BE_LESS_THAN(v, P65535);
}
int main(void)
{
marker = 0x01;
sint_loc_to_ustat_11();
sint_loc_to_ustat_13();
sint_loc_to_ustat_15();
sint_loc_to_ustat_17();
sint_loc_to_ustat_19();
sint_loc_to_ustat_1B();
sint_loc_to_ustat_1D();
sint_loc_to_ustat_1F();
sint_loc_to_ustat_21();
sint_loc_to_ustat_23();
sint_loc_to_ustat_25();
sint_loc_to_ustat_27();
sint_loc_to_ustat_29();
sint_loc_to_ustat_2B();
sint_loc_to_ustat_2D();
printf(TEST_NAME " failures: %d\n", failures);
return failures ? EXIT_FAILURE : EXIT_SUCCESS;
}