Hex.cpp

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#include <string.h>
 
#include <tdme/tdme.h>
#include <tdme/utilities/Hex.h>
 
using std::string;
 
using tdme::utilities::Hex;
 
void Hex::encodeInt(const uint64_t decodedInt, string& encodedString) {
    encodedString = "";
    char encodingCharSet[] = "0123456789abcdef";
    auto _decodedInt = decodedInt;
    for (auto i = 0; i < 32; i++) {
        auto charIdx = _decodedInt & 15;
        encodedString = encodingCharSet[charIdx] + encodedString;
        _decodedInt>>= 4;
        if (_decodedInt == 0) break;
    }
}
 
bool Hex::decodeInt(const string& encodedString, uint64_t& decodedInt) {
    char encodingCharSet[] = "0123456789abcdef";
    decodedInt = 0;
    for (auto i = 0; i < encodedString.length(); i++) {
        auto codeIdx = -1;
        char c = encodedString[encodedString.length() - i - 1];
        char* codePtr = strchr(encodingCharSet, c);
        if (codePtr == NULL) {
            return false;
        } else {
            codeIdx = codePtr - encodingCharSet;
        }
        decodedInt+= codeIdx << (i * 4);
    }
    return true;
}