Calculates the next representable value after x in the direction of y.
If y > x, the result will be the next largest floating-point value;
if y < x, the result will be the next smallest value.
If x == y, the result is y.
Remarks:
This function is not generally very useful; it's almost always better to use
the faster functions nextUp() or nextDown() instead.
IEEE 754 requirements not implemented:
The FE_INEXACT and FE_OVERFLOW exceptions will be raised if x is finite and
the function result is infinite. The FE_INEXACT and FE_UNDERFLOW
exceptions will be raised if the function value is subnormal, and x is
not equal to y.
Calculates the next representable value after x in the direction of y.
If y > x, the result will be the next largest floating-point value; if y < x, the result will be the next smallest value. If x == y, the result is y.
Remarks: This function is not generally very useful; it's almost always better to use the faster functions nextUp() or nextDown() instead.
IEEE 754 requirements not implemented: The FE_INEXACT and FE_OVERFLOW exceptions will be raised if x is finite and the function result is infinite. The FE_INEXACT and FE_UNDERFLOW exceptions will be raised if the function value is subnormal, and x is not equal to y.