Function IsNumber

tools/rcedit/src/cmd/validators.cpp:16–22

const std::string kInvalidArgument( "Invalid argument" );

bool IsNumber( const std::string& string )
{
    if( string.empty() )
        return false;

    return std::all_of( std::cbegin( string ), std::cend( string ), ::isdigit );
}

}  // namespace