Convert java method into cpp

Question

public boolean isDoubleValue(String s) {
        try {
            Double.valueOf(s);
            return true;
        } catch (Exception e) {
            return false;
        }
    }

But i want to convert this method into QT cpp. Can any one help me?

Thanks, Nagaraju

QT is just a library on top of C and C++. Any answer that works with those should work with any QT compiled C++ application. — Jimmy2Times
– Jimmy2Times, Commented May 9, 2011 at 4:42

liaK · Accepted Answer · 2011-05-09 04:43:46Z

4

Since you need it in Qt (from your comment), you can use

double QString::toDouble ( bool * ok = 0 ) const.

And you can check the value of ok and return accordingly..

answered May 9, 2011 at 4:43

liaK

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Jimmy2Times · Accepted Answer · 2011-05-09 04:37:55Z

0

You probably want atof(). This is a standard c library function for converting strings to doubles.

answered May 9, 2011 at 4:37

Jimmy2Times

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1 Comment

andref Over a year ago

You probably don't want atof because, as the manual page says, "atof() does not detect errors." If QString::toDouble is undesirable, use strtod instead.

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