config.h

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/*
 * Copyright 2012, 2017, 2020 Free Software Foundation, Inc.
 *
 * This file is part of VOLK
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later
 */
 
#ifndef _MSC_VER // [
#error "Use this header only with Microsoft Visual C++ compilers!"
#endif // _MSC_VER ]
 
#ifndef _MSC_CONFIG_H_ // [
#define _MSC_CONFIG_H_
 
// enable inline functions for C code
#ifndef __cplusplus
#define inline __inline
#endif
 
// signed size_t
#include <stddef.h>
typedef ptrdiff_t ssize_t;
 
// rint functions
#if _MSC_VER < 1800
#include <math.h>
static inline long lrint(double x) { return (long)(x > 0.0 ? x + 0.5 : x - 0.5); }
static inline long lrintf(float x) { return (long)(x > 0.0f ? x + 0.5f : x - 0.5f); }
static inline long long llrint(double x)
{
    return (long long)(x > 0.0 ? x + 0.5 : x - 0.5);
}
static inline long long llrintf(float x)
{
    return (long long)(x > 0.0f ? x + 0.5f : x - 0.5f);
}
static inline double rint(double x) { return (x > 0.0) ? floor(x + 0.5) : ceil(x - 0.5); }
static inline float rintf(float x)
{
    return (x > 0.0f) ? floorf(x + 0.5f) : ceilf(x - 0.5f);
}
#endif
 
// math constants
#if _MSC_VER < 1800
#include <math.h>
#define INFINITY HUGE_VAL
#endif
 
// random and srandom
#include <stdlib.h>
static inline long int random(void) { return rand(); }
static inline void srandom(unsigned int seed) { srand(seed); }
 
#endif // _MSC_CONFIG_H_ ]