Function parse

src/qt/bitcoinamountfield.cpp:137–149

* Parse a string into a number of base monetary units and * return validity. * @note Must return 0 if !valid. */

     * @note Must return 0 if !valid.
     */
    CAmount parse(const QString &text, bool *valid_out=0) const
    {
        CAmount val = 0;
        bool valid = BitcoinUnits::parse(currentUnit, text, &val);
        if(valid)
        {
            if(val < 0 || val > BitcoinUnits::maxMoney())
                valid = false;
        }
        if(valid_out)
            *valid_out = valid;
        return valid ? val : 0;
    }

protected:
    bool event(QEvent *event)