4.6 Testing for Odd and Even Numbers
- Macro: GSL_IS_ODD (n)
- This macro evaluates to 1 if n is odd and 0 if n is
even. The argument n must be of integer type.
- Macro: GSL_IS_EVEN (n)
- This macro is the opposite of
GSL_IS_ODD(n). It evaluates to 1 if
n is even and 0 if n is odd. The argument n must be of
integer type.
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