Function compress

src/ifcparse/IfcGlobalId.cpp:69–77

Compresses the UUID byte array into a base64 representation

// Compresses the UUID byte array into a base64 representation
std::string compress(unsigned char* value) {
    std::string result;
    result.reserve(22);
    result += base64(value[0], 2);
    for (unsigned i = 1; i < 16; i += 3) {
        result += base64((value[i] << 16) + (value[i + 1] << 8) + value[i + 2], 4);
    }
    return result;
}

// Expands the base64 representation into a UUID byte array
void expand(const std::string& s, std::vector<unsigned char>& v) {