std::trunc

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Defined in header <cmath>

float       trunc( float arg );
(C++11 feature)
double      trunc( double arg );
(C++11 feature)
long double trunc( long double arg );
(C++11 feature)

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.

[edit] Notes

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

[edit] See also

floor
nearest integer not greater than the given value
(function)
ceil
nearest integer not less than the given value
(function)
round
lround
llround
(C++11)
(C++11)
(C++11)
nearest integer, rounding away from zero in halfway cases
(function)