sources/builtins.c

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/*
** Copyright 2009-2011, helixis.org
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without modification, are permitted provided
** that the following conditions are met:
**
** Redistributions of source code must retain the above copyright notice, this list of conditions and the
** following disclaimer.
**
** 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.
**
** Neither the name of the helixis.org nor the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written permission.
**
** 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.
*/

/*
** INCLUDES
*/

#include "hlx/core.h"
#include "helixis_internal.h"

#ifdef __cplusplus
extern "C"      {
#endif

/*
** FUNCTIONS
*/

/* Daniel J.Bernstein hash algorithm */
unsigned long           hlx_hash(const char* str)
{
        unsigned long   hash;
        int                             c;

        hash = 5361;
        while (*str)
        {
                c = *str;
                hash = (hash << 5) + hash + c;
                ++str;
        }
        return (hash);
}

void    *hlx_memcpy(void* dest, const void* src, unsigned int num)
{
        char* dst8 = (char*)dest;
        char* src8 = (char*)src;

        if (num & 1)
        {
                dst8[0] = src8[0];
                dst8 += 1;
                src8 += 1;
        }
        num /= 2;
        while (num--)
        {
                dst8[0] = src8[0];
                dst8[1] = src8[1];
                dst8 += 2;
                src8 += 2;
        }
        return (dest);
}

#ifdef __cplusplus
}
#endif

/*
** END OF FILE
*/