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std::trunc

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Defined in header <cmath>
float       trunc( float arg );
(since C++11)
double      trunc( double arg );
(since C++11)
long double trunc( long double arg );
(since C++11)
double      trunc( Integral arg );
(since C++11)

Computes nearest integer not greater in magnitude than arg.

Contents

[edit] Parameters

arg - floating point value

[edit] Return value

Nearest integer not greater in magnitude than arg.

Return value
math-trunc.svg
Argument

[edit] Notes

The integer value can be always represented by the given floating point type.

[edit] See also

nearest integer not greater than the given value
(function) [edit]
nearest integer not less than the given value
(function) [edit]
(C++11)(C++11)(C++11)
nearest integer, rounding away from zero in halfway cases
(function) [edit]