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C++ static_cast Keyword


Example

Convert a double to an int:

double myDouble = 9.99;
int myInt = static_cast<int>(myDouble);
cout << myInt;

Try it Yourself »


Definition and Usage

The static_cast keyword converts a value from one type to another. Write the new type inside < >, and the value inside the parentheses.

When you convert a double to an int, the decimals are cut off, not rounded. That is why 9.99 becomes 9, not 10.

static_cast is the recommended way to convert values in C++. The older C-style way, (int) myDouble, does the same thing, but static_cast is easier to spot and safer to use.


Related Pages

Read more about type conversion in our C++ Type Conversion Tutorial.


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