SDL/test/testqsort.c
Sylvain Becker fb0ce375f0 Cleanup add brace (#6545)
* Add braces after if conditions

* More add braces after if conditions

* Add braces after while() conditions

* Fix compilation because of macro being modified

* Add braces to for loop

* Add braces after if/goto

* Move comments up

* Remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements after merge

* Fix inconsistent patterns are xxx == NULL vs !xxx

* More "{}" for "if() break;"  and "if() continue;"

* More "{}" after if() short statement

* More "{}" after "if () return;" statement

* More fix inconsistent patterns are xxx == NULL vs !xxx

* Revert some modificaion on SDL_RLEaccel.c

* SDL_RLEaccel: no short statement

* Cleanup 'if' where the bracket is in a new line

* Cleanup 'while' where the bracket is in a new line

* Cleanup 'for' where the bracket is in a new line

* Cleanup 'else' where the bracket is in a new line

(cherry picked from commit 6a2200823c66e53bd3cda4a25f0206b834392652 to reduce conflicts merging between SDL2 and SDL3)
2022-11-28 12:33:03 -08:00

104 lines
2.8 KiB
C

/*
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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.
*/
#include "SDL_test.h"
static int SDLCALL
num_compare(const void *_a, const void *_b)
{
const int a = *((const int *) _a);
const int b = *((const int *) _b);
return (a < b) ? -1 : ((a > b) ? 1 : 0);
}
static void
test_sort(const char *desc, int *nums, const int arraylen)
{
int i;
int prev;
SDL_Log("test: %s arraylen=%d", desc, arraylen);
SDL_qsort(nums, arraylen, sizeof (nums[0]), num_compare);
prev = nums[0];
for (i = 1; i < arraylen; i++) {
const int val = nums[i];
if (val < prev) {
SDL_Log("sort is broken!");
return;
}
prev = val;
}
}
int
main(int argc, char *argv[])
{
static int nums[1024 * 100];
static const int itervals[] = { SDL_arraysize(nums), 12 };
int iteration;
SDLTest_RandomContext rndctx;
if (argc > 1) {
int success;
Uint64 seed = 0;
if (argv[1][0] == '0' && argv[1][1] == 'x')
success = SDL_sscanf(argv[1] + 2, "%"SDL_PRIx64, &seed);
else
success = SDL_sscanf(argv[1], "%"SDL_PRIu64, &seed);
if (!success) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid seed. Use a decimal or hexadecimal number.\n");
return 1;
}
if (seed <= ((Uint64)0xffffffff)) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Seed must be equal or greater than 0x100000000.\n");
return 1;
}
SDLTest_RandomInit(&rndctx, (unsigned int)(seed >> 32), (unsigned int)(seed & 0xffffffff));
} else {
SDLTest_RandomInitTime(&rndctx);
}
SDL_Log("Using random seed 0x%08x%08x\n", rndctx.x, rndctx.c);
for (iteration = 0; iteration < SDL_arraysize(itervals); iteration++) {
const int arraylen = itervals[iteration];
int i;
for (i = 0; i < arraylen; i++) {
nums[i] = i;
}
test_sort("already sorted", nums, arraylen);
for (i = 0; i < arraylen; i++) {
nums[i] = i;
}
nums[arraylen-1] = -1;
test_sort("already sorted except last element", nums, arraylen);
for (i = 0; i < arraylen; i++) {
nums[i] = (arraylen-1) - i;
}
test_sort("reverse sorted", nums, arraylen);
for (i = 0; i < arraylen; i++) {
nums[i] = SDLTest_RandomInt(&rndctx);
}
test_sort("random sorted", nums, arraylen);
}
return 0;
}
/* vi: set ts=4 sw=4 expandtab: */