ucx.h

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef UCX_H
#define UCX_H

#define UCX_VERSION_MAJOR   2

#define UCX_VERSION_MINOR   1

#define UCX_VERSION (((UCX_VERSION_MAJOR)<<16)|UCX_VERSION_MINOR)

#include <stdlib.h>
#include <stdint.h>

#ifdef _WIN32
#if !(defined __ssize_t_defined || defined _SSIZE_T_)
#include <BaseTsd.h>
typedef SSIZE_T ssize_t;
#define __ssize_t_defined
#define _SSIZE_T_
#endif /* __ssize_t_defined and _SSIZE_T */
#else /* !_WIN32 */
#include <sys/types.h>
#endif /* _WIN32 */

#ifdef  __cplusplus
extern "C" {
#endif
    

typedef void(*ucx_destructor)(void*);

typedef int(*cmp_func)(const void*,const void*,void*);

typedef intmax_t(*distance_func)(const void*,const void*,void*);

typedef void*(*copy_func)(const void*,void*);

typedef size_t(*write_func)(const void*, size_t, size_t, void*);

typedef size_t(*read_func)(void*, size_t, size_t, void*);



#if __GNUC__ >= 5 || defined(__clang__)
#define UCX_MUL_BUILTIN

#if __WORDSIZE == 32

#define ucx_szmul(a, b, result) __builtin_umul_overflow(a, b, result)
#else /* __WORDSIZE != 32 */

#define ucx_szmul(a, b, result) __builtin_umull_overflow(a, b, result)
#endif /* __WORDSIZE */

#else /* no GNUC or clang bultin */

#define ucx_szmul(a, b, result) ucx_szmul_impl(a, b, result)

int ucx_szmul_impl(size_t a, size_t b, size_t *result);

#endif

#ifdef  __cplusplus
}
#endif

#endif  /* UCX_H */