choose_i64_int32 Function

private pure recursive function choose_i64_int32(n, r, signal_overflow) result(res)

Return the binomail coefficient nCr(n, r)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	n
integer(kind=int32),	intent(in)			::	r
logical,	intent(in),	optional		::	signal_overflow	If true then the function returns -1 instead of aborting when overflow is encountered.

Return Value integer(kind=int64)

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