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capture C++0x flag inside the program [duplicate]

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This question already has answers here: Closed 10 years ago. Possible Duplicate: GNU C++ how to check when -std=c++0x is in effect? What I want to do is: #if defined(CPLUSPLUS_OXFLAG) //do something #else //do something else #endif Now how can I capture -std=c++0x argument passed to the compiler(g++) to define my CPLUSPLUS_OXFLAG flag? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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The GCC documentation states that the preprocessor symbol __GXX_EXPERIMENTAL_CXX0X__ is defined when compiling with -std=c++0x.

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