RubyInline允许你在ruby代码中直接编写c/c++代码,还会有性能问题吗?
安装方法:sudo gem install RubyInline
示例代码:
class MyTest def factorial(n) f = 1 n.downto(2) { |x| f *= x } 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