mirror of
https://gitlab.freedesktop.org/wayland/wayland.git
synced 2025-11-03 09:01:42 -05:00
0d314c4a04
Currently libwayland assumes GNU extensions will be available, but doesn't define the C standard to use. Instead, let's unconditionally enable POSIX extensions, and enable GNU extensions on a case-by-case basis as needed. Signed-off-by: Simon Ser <contact@emersion.fr>
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
|
|
* Copyright © 2012 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include "wayland-private.h"
|
|
#include "test-runner.h"
|
|
|
|
TEST(fixed_double_conversions)
|
|
{
|
|
wl_fixed_t f;
|
|
double d;
|
|
|
|
d = 62.125;
|
|
f = wl_fixed_from_double(d);
|
|
fprintf(stderr, "double %lf to fixed %x\n", d, f);
|
|
assert(f == 0x3e20);
|
|
|
|
d = -1200.625;
|
|
f = wl_fixed_from_double(d);
|
|
fprintf(stderr, "double %lf to fixed %x\n", d, f);
|
|
assert(f == -0x4b0a0);
|
|
|
|
f = random();
|
|
d = wl_fixed_to_double(f);
|
|
fprintf(stderr, "fixed %x to double %lf\n", f, d);
|
|
assert(d == f / 256.0);
|
|
|
|
f = 0x012030;
|
|
d = wl_fixed_to_double(f);
|
|
fprintf(stderr, "fixed %x to double %lf\n", f, d);
|
|
assert(d == 288.1875);
|
|
|
|
f = 0x70000000;
|
|
d = wl_fixed_to_double(f);
|
|
fprintf(stderr, "fixed %x to double %lf\n", f, d);
|
|
assert(d == f / 256);
|
|
|
|
f = -0x012030;
|
|
d = wl_fixed_to_double(f);
|
|
fprintf(stderr, "fixed %x to double %lf\n", f, d);
|
|
assert(d == -288.1875);
|
|
|
|
f = 0x80000000;
|
|
d = wl_fixed_to_double(f);
|
|
fprintf(stderr, "fixed %x to double %lf\n", f, d);
|
|
assert(d == f / 256);
|
|
}
|
|
|
|
TEST(fixed_int_conversions)
|
|
{
|
|
wl_fixed_t f;
|
|
int i;
|
|
|
|
i = 62;
|
|
f = wl_fixed_from_int(i);
|
|
assert(f == 62 * 256);
|
|
|
|
i = -2080;
|
|
f = wl_fixed_from_int(i);
|
|
assert(f == -2080 * 256);
|
|
|
|
f = 0x277013;
|
|
i = wl_fixed_to_int(f);
|
|
assert(i == 0x2770);
|
|
|
|
f = -0x5044;
|
|
i = wl_fixed_to_int(f);
|
|
assert(i == -0x50);
|
|
}
|