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Possible fundamental flaw in order of pre-processing? #113
Description
Using the following code snippet:
#define TARGS4 T1,T2,T3,T4
#define FOOIMPL(T__CLASS, TARGS) void foo(const T__CLASS<TARGS>& x) { }
#define FOOIMPL_4(T__CLASS) FOOIMPL(T__CLASS, TARGS4)
FOOIMPL_4(y)
both gcc and Visual C++ give the following output:
void foo(const y<T1,T2,T3,T4>& x) {}
However CppCheck via simplecpp gives the following error:
[file.cpp:3]: (error) failed to expand 'FOOIMPL_4', Wrong number of parameters for macro 'FOOIMPL'
I'm unsure but this might be related to issues #40 , #79 and #109. Could it be that simplecpp is trying to expand pre-processor arguments too early?
Activity
danmar commentedon Dec 29, 2017
Sure there is a problem to fix. My feeling is that this is very hard to get perfect. As far as I have seen, the rules are not always entirely consistent.
danmar commentedon Jan 13, 2018
I closed wrong issue by mistake
datadiode commentedon Aug 30, 2024
I think #292 was a duplicate of this.
firewave commentedon Jul 3, 2025
test.cpp: added test for cppcheck-opensource#113 [skip ci]
test.cpp: added test for cppcheck-opensource#113
test.cpp: added tests for cppcheck-opensource#40
test.cpp: added test for cppcheck-opensource#113