Ceil

Computes integer value rounded toward plus infinity for each vector element.

Syntax

IppStatus ippsCeil_32f (const Ipp32f* pSrc, Ipp32f* pDst, Ipp32s len);

IppStatus ippsCeil_64f (const Ipp64f* pSrc, Ipp64f* pDst, Ipp32s len);

Parameters

pSrc	Pointer to the source vector.
pDst	Pointer to the destination vector.
len	Number of elements in the vectors.

Description

The function ippsCeil is declared in the ippvm.h file. This function computes an integer value rounded towards plus infinity for each element of the vector pSrc, and stores the result in the corresponding element of the vector pDst.

The example below shows how to use the function ippsCeil.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when pSrc or pDst pointer is NULL.
ippStsSizeErr	Indicates an error when len is less than or equal to 0.

Using ippsCeil Function

IppStatus ippsCeil_32f_sample(void)

    const Ipp32f x[4] = {-0.883, -0.265, 0.176, 0.752};

    Ipp32f y[4];

    IppStatus st = ippsCeil_32f ( x, y, 4 );

    printf(" ippsCeil_32f:\n");

    printf(" x = %.3f %.3f %.3f %.3f \n", x[0], x[1], x[2], x[3]);

    printf(" y = %.3f %.3f %.3f %.3f \n", y[0], y[1], y[2], y[3]);

    return st;

Output results:

ippsCeil_32f:

x = -0.883 -0.265 0.176 0.752

y = 0.000 0.000 1.000 1.000