Itoa.cpp

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/*
 *  Copyright (c) 2014, Oculus VR, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  RakNet License.txt file in the licenses directory of this source tree. An additional grant 
 *  of patent rights can be found in the RakNet Patents.txt file in the same directory.
 *
 *
 *  Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
 *
 *  This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
 *  license found in the license.txt file in the root directory of this source tree.
 */

#include "slikenet/EmptyHeader.h"

#ifdef __cplusplus
extern "C" {
#endif

// Fast itoa from http://www.jb.man.ac.uk/~slowe/cpp/itoa.html for Linux since it seems like Linux doesn't support this function.
// I modified it to remove the std dependencies.
char* Itoa( int value, char* result, int base )
 {
    // check that the base if valid
    if (base < 2 || base > 16) { *result = 0; return result; }
    char* out = result;
    int quotient = value;

    int absQModB;

    do {
        // KevinJ - get rid of this dependency
        //*out = "0123456789abcdef"[ std::abs( quotient % base ) ];
        absQModB=quotient % base;
        if (absQModB < 0)
            absQModB=-absQModB;
        *out = "0123456789abcdef"[ absQModB ];
        ++out;
        quotient /= base;
    } while ( quotient );

    // Only apply negative sign for base 10
    if ( value < 0 && base == 10) *out++ = '-';

    // KevinJ - get rid of this dependency
    // std::reverse( result, out );
    *out = 0;

    // KevinJ - My own reverse code
    char *start = result;
    char temp;
    out--;
    while (start < out)
    {
        temp=*start;
        *start=*out;
        *out=temp;
        start++;
        out--;
    }

    return result;
}

#ifdef __cplusplus
}
#endif