Sha256: d8b93a97afcae9a39d2842e02b9bf40ac490346f4adf28e7da6396f59cd5a035
Contents?: true
Size: 469 Bytes
Versions: 46
Compression:
Stored size: 469 Bytes
Contents
begin require 'rubygems' rescue LoadError end
require 'inline'
class FastMath
def factorial(n)
f = 1
n.downto(2) { |x| f *= x }
return f
end
inline do |builder|
builder.c "
long factorial_c(int max) {
int i=max, result=1;
while (i >= 2) { result *= i--; }
return result;
}"
end
end
math = FastMath.new
if ARGV.empty? then
30000.times do math.factorial(20); end
else
30000.times do math.factorial_c(20); end
end
Version data entries
46 entries across 46 versions & 4 rubygems