How to Find Min and Max in a Vector (Qt + STL)

Posted on Posted in Qt Tutorials, Tutorials

In Qt, finding the minimum or maximum value in a QList or QVector can be frustrating sometimes and it also will complicate things when you just want a quick and simple minimum and maximum. Use the pieces of codes below to get them with a single line of code.

Make sure you add the following to your include list:

#include <algorithm>

It is assumed that you have a vector called vec which contains double values.





Finding the minimum value in a vector of double values or QVector<double>

double min = *std::min_element(vec.constBegin(), vec.constEnd());





Finding the maximum value in a vector of double values or QVector<double>

double max = *std::max_element(vec.constBegin(), vec.constEnd());

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