49 lines
1 KiB
C
49 lines
1 KiB
C
/*
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* This software is licensed under the terms of the MIT License.
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* See COPYING for further information.
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* ---
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* Copyright (c) 2011-2019, Lukas Weber <laochailan@web.de>.
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* Copyright (c) 2012-2019, Andrei Alexeyev <akari@taisei-project.org>.
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*/
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#pragma once
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#include "taisei.h"
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#include <SDL.h>
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void inherit_missing_pointers(uint num, void *dest[num], void *const base[num]) attr_nonnull(2, 3);
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typedef union FloatBits {
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float val;
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uint32_t bits;
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} FloatBits;
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typedef union DoubleBits {
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double val;
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uint64_t bits;
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} DoubleBits;
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INLINE uint32_t float_to_bits(float f) {
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return ((FloatBits) { .val = f }).bits;
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}
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INLINE float bits_to_float(uint32_t i) {
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return ((FloatBits) { .bits = i }).val;
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}
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INLINE uint64_t double_to_bits(double d) {
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return ((DoubleBits) { .val = d }).bits;
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}
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INLINE double bits_to_double(uint64_t i) {
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return ((DoubleBits) { .bits = i }).val;
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}
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#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(*(arr)))
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#define SWAP(_a, _b) ({ \
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auto _swap_temp = _a; \
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_a = _b; \
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_b = _swap_temp; \
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(void)0; \
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})
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