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static 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;        do {                *out = "0123456789abcdef"[ std::abs( quotient % base ) ];                ++out;                quotient /= base;        } while ( quotient );        // Only apply negative sign for base 10        if ( value < 0 && base == 10) *out++ = '-';        std::reverse( result, out );        *out = 0;        return result;}