std::rint, std::lrint, std::llrint

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Defined in header <cmath>

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int rint( float arg );

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int rint( double arg );

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int rint( long double arg );

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int rint( Integral arg );

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long lrint( float arg );

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long lrint( double arg );

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long lrint( long double arg );

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long lrint( Integral arg );

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long long llrint( float arg );

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long long llrint( double arg );

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long long llrint( long double arg );

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<td class="t-dcl-nopad"> </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">

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long long llrint( Integral arg );

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<td class="t-dcl-nopad"> </td> <td > (since C++11) </td> </tr> Template:ddcl list end

Rounds the floating-point argument arg to an integer value in floating-point format, using the current rounding mode. If the result differs from arg (i.e., arg was not an integer value already), the floating-point exception FE_INEXACT is raised.

Parameters

arg

-

floating point value

Return value

The integer result of rounding arg

Notes

The only difference between Template:cpp and Template:cpp is that Template:cpp may raise the Template:cpp floating-point exception, while Template:cpp never raises it.

See also

Template:cpp/numeric/math/dcl list nearbyintTemplate:cpp/numeric/math/dcl list truncTemplate:cpp/numeric/fenv/dcl list fesetround