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BinHex.h

Go to the documentation of this file.

#ifndef Impala_Util_BinHex_h
#define Impala_Util_BinHex_h

#include "Basis/String.h"
#include "Basis/NativeTypes.h"

namespace Impala
{
namespace Util
{


inline String
Bin2Hex(UInt8* data, size_t dataSize)
{
    const char lookup[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                           'A', 'B', 'C', 'D', 'E', 'F'};

    String res;
    for (size_t i=0 ; i<dataSize ; i++)
    {
        Int8 hi = (data[i] & 0xF0) >> 4;
        Int8 lo = data[i] & 0x0F;
        res += lookup[hi];
        res += lookup[lo];
    }
    return res;
}

inline UInt8*
Hex2Bin(CString data, size_t& resSize)
{
    UInt8* tmp = new UInt8[data.size()];
    for (int i=0 ; i<data.size() ; i++)
    {
        UInt8 res;
        switch (data[i])
        {
        case '0': res = 0; break;
        case '1': res = 1; break;
        case '2': res = 2; break;
        case '3': res = 3; break;
        case '4': res = 4; break;
        case '5': res = 5; break;
        case '6': res = 6; break;
        case '7': res = 7; break;
        case '8': res = 8; break;
        case '9': res = 9; break;
        case 'A': res = 10; break;
        case 'B': res = 11; break;
        case 'C': res = 12; break;
        case 'D': res = 13; break;
        case 'E': res = 14; break;
        case 'F': res = 15; break;
        }
        tmp[i] = res;
    }
    resSize = data.size() / 2;
    UInt8* res = new UInt8[resSize];
    for (int i=0 ; i<resSize ; i++)
    {
        res[i] = ((tmp[i*2] << 4) & 0xF0) | tmp[i*2+1];
    }
    delete tmp;
    return res;
}

} // namespace Util
} // namespace Impala

#endif

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