CC78K0S Datasheet, PDF (271/520 Pages) NEC – C Compiler Ver.1.30 or Later Language

CHAPTER 10 LIBRARY FUNCTIONS
7-22 fmod (normal model only)
Mathematical Functions
FUNCTION
fmod finds the remainder of x/y.
HEADER
math.h
FUNCTION PROTOTYPE
double fmod (double x, double y) ;
Function
fmod
Arguments
x ... Numeric value on which
operation is performed
y ... Numeric value on which
operation is performed
Return Value
Normal ... Remainder of x/y
When x is non-numeric or y is
non-numeric, when y is ±0,
when x is ±∞ ... NaN
When x ≠ ∞ and y = ±∞ ... x
EXPLANATION
• Calculates the remainder of x/y expressed with x – i*y. i is an integer.
• If y ≠ 0, the return value has the same sign as that of x and the absolute value is less than that of y.
• If y is ± 0 or x = ±∞, NaN is returned and EDOM is set to errno.
• If x is non-numeric or y is non-numeric, NaN is returned.
• If y is infinite, x is returned unless x is infinite.
User’s Manual U14872EJ1V0UM
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