how would you translate this? ```int ObjFileParse...

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how would you translate this?

int ObjFileParser::getMaterialIndex( const std::string &strMaterialName )
{
    int mat_index = -1;
    if( strMaterialName.empty() ) {
        return mat_index;
    }
    for (size_t index = 0; index < m_pModel->m_MaterialLib.size(); ++index)
    {
        if ( strMaterialName == m_pModel->m_MaterialLib[ index ])
        {
            mat_index = (int)index;
            break;
        }
    }
    return mat_index;
}