I have written a simple stack based virtual machine you can view it's source at https://github.com/radinParsaei/VM
when I compile it with clang it works well but if it compiles with GCC in bytecodes I have coded like pop() / pop()
it work irregular and it returns stack[stack.size() - 2] / stack[stack.size() - 1]
i fix this with writing that code like Value a = pop(); Value b = pop(); return a / b;
anyone has better idea?
gcc app runs irregularly but clang works fine
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As @IlCapitano says, your second
pop()
may be called first:The key: the function call to c may be evaluated first, last, or between a() or b() at run time.
In response to comment:
So it depends on the compiler. Each does it differently.