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The functions ffloor
, fceiling
, fround
, and
ftruncate
take a floating point argument and return a floating
point result whose value is a nearby integer. ffloor
returns the
nearest integer below; fceiling
, the nearest integer above;
ftruncate
, the nearest integer in the direction towards zero;
fround
, the nearest integer.
This function rounds float to the next lower integral value, and returns that value as a floating point number.
This function rounds float to the next higher integral value, and returns that value as a floating point number.