std::round, std::lround, std::llround

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Defined in header <cmath>

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float round( float arg );

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double round( double arg );

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long double round( long double arg );

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double round( Integral arg );

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long lround( float arg );

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long lround( double arg );

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long lround( long double arg );

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long lround( Integral arg );

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long long llround( float arg );

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long long llround( double arg );

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long long llround( long double arg );

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long long llround( Integral arg );

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Computes nearest integer to arg. Number is rounded away from zero in halfway cases

Parameters

arg

-

floating point value

Return value

Nearest integer to arg.

See also

Template:cpp/numeric/math/dcl list floorTemplate:cpp/numeric/math/dcl list ceilTemplate:cpp/numeric/math/dcl list trunc