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How to select an older compiler in Microsoft Visual C++ 2019?

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问题 As written here, under "Project Settings" I should be able to specify the compiler to be used for the current project. However, I cannot find this menu entry in Visual Studio 2019. I have both Visual C++ 2019 and 2013, and would like to use the new IDE with the old compiler. How can I do it? Is it possible to do it with the "Community" editions? 回答1: Here are the official instructions, taken from this page: In Visual Studio, in Solution Explorer, open the shortcut menu for your project ( not

How to select an older compiler in Microsoft Visual C++ 2019?

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How to select an older compiler in Microsoft Visual C++ 2019?

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How are the __cplusplus directive defined in various compilers?

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问题 My compiler expands it to 199711L. What does that mean? I read that __cplusplus > 199711L signifies C++11. What are the possible expansions of this macro and what does it signify? 回答1: The 199711L stands for Year=1997, Month = 11 (i.e., November of 1997) -- the date when the committee approved the standard that the rest of the ISO approved in early 1998. For the 2003 standard, there were few enough changes that the committee (apparently) decided to leave that value unchanged. For the 2011

Benchmarks of code generated by different g++ versions

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问题 I work on a runtime system for an application domain that is very performance sensitive. We go to a lot of effort to maintain backward compatibility with older compiler versions, including avoiding more recently-implemented language constructs, and synthesizing them for the older versions. However, I'm concerned that this effort does a disservice to our users, by enabling them to continue to use compiler releases that are costing them huge amounts of performance. Unfortunately, I haven't been

How are the __cplusplus directive defined in various compilers?

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My compiler expands it to 199711L. What does that mean? I read that __cplusplus > 199711L signifies C++11. What are the possible expansions of this macro and what does it signify? The 199711L stands for Year=1997, Month = 11 (i.e., November of 1997) -- the date when the committee approved the standard that the rest of the ISO approved in early 1998. For the 2003 standard, there were few enough changes that the committee (apparently) decided to leave that value unchanged. For the 2011 standard, it's required to be defined as 201103L, (again, year=2011, month = 03) again meaning that the

What are the correct version numbers for C#?

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问题 What are the correct version numbers for C#? What came out when? Why can\'t I find any answers about C# 3.5 ? This question is primarily to aid those who are searching for an answer using an incorrect version number, e.g. C# 3.5 . The hope is that anyone failing to find an answer with the wrong version number will find this question and then search again with the right version number. 回答1: C# language version history: These are the versions of C# known about at the time of this writing: C# 1