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Computes the next representable floating-point value following x in the direction of y. Thus, if y is less than x, nextafter shall return the largest representable floating-point number less than x. The nextafter function shall return y if x equals y.

#include <math.h>

double nextafter (double x, double y);


x, y
Double-precision floating-point values.

Return Values


Versions Defined in Include Link to
INtime 3.0 intime/rt/include/math.h math.h clib.lib