是否有一个算法,如果语句比较? [英] Is there an algorithm for comparing if statements?
问题描述
是否有检测,如果两套如果
语句具有相同条件的算法和/或工具的相同呢?当我说等价物 - 我的意思是,他们执行相同的code对所有给定的输入。例如:
Is there an algorithm and/or tool for detecting if two sets of if
statements with the same conditions are equivalent? When I say "equivalent" - I mean that they execute the same code for all given inputs. For example:
# set 1
if a
if b
someMethod()
end
end
# set 2
if a && b
someMethod()
end
# set 3
if a || b
someMethod()
end
由于这3套如果
语句,你可以考虑设置1和设置2为相当于在的someMethod
只被执行时,a和b都为真。同样设置1和设置3不是因为的someMethod
相当于将不会获得由1集时执行一个是真,b为假,但会在3组根据这些执行相同的条件。
Given these 3 sets of if
statements, you could consider set 1 and set 2 to be "equivalent" in that someMethod
only gets executed when a and b are true. Likewise set 1 and set 3 are not equivalent since someMethod
won't get executed by set 1 when a is true and b is false, but will be executed in set 3 under those same conditions.
推荐答案
我会用的卡诺图
- 这是标准的非时序逻辑综合和分析。
1,创建卡诺图每个组IF
1.create Karnaugh Map for each set of ifs
2,如果地图不一样,那么的if语句是等价的
2.if the map is the same then the if statements are equivalent
- 如果没有的话,他们是不同的
...很抱歉很短的答案,但我没有什么线索其他补充,因为这是基本常识。
... Sorry for a short answer but I do not have a clue what else to add because this is basic knowledge.
刚才你的情况......
- 设置1 ==设置2
- SET3不同的是
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