I installed gcc 4.9.2. I compiled the program using the following command:
我安装gcc 4.9.2。我使用以下命令编译程序:
/root/gcc-4.9.2/bin/g++ -std=c++1y testing.cpp
/root/gcc-4.9.2/bin/g + + y testing.cpp化= c + + 1
Note that in addition to the option "-std=c++1y", there is another option "-std=c++14". Will the compiler work in the same way and generate exactly the same executable for both options? Thanks!
注意，除了选项“-std=c++1y”之外，还有另一个选项“-std=c++14”。编译器会以同样的方式工作，并为两个选项生成完全相同的可执行文件吗?谢谢!
1 个解决方案
#1
21
C++ 14 is the latest ISO standard, and should be used unless you need some gcc non standard feature
c++ 14是最新的ISO标准，应该使用，除非您需要一些gcc非标准特性。
c++1y is a name that was used to refer to the c++14 standard before it was completed, so it is most likely adhering to a draft of the standard, but not the actual standard itself. There may be some minute differences between the two, but c++14 is the ISO standard
c++1y是在它完成之前被用来引用c++14标准的名称，所以它很可能是遵循标准的草案，而不是实际的标准本身。两者之间可能有细微的差别，但是c++14是ISO标准。
In short, use c++14
简而言之,使用c++ 14
#1
21
C++ 14 is the latest ISO standard, and should be used unless you need some gcc non standard feature
c++ 14是最新的ISO标准，应该使用，除非您需要一些gcc非标准特性。
c++1y is a name that was used to refer to the c++14 standard before it was completed, so it is most likely adhering to a draft of the standard, but not the actual standard itself. There may be some minute differences between the two, but c++14 is the ISO standard
c++1y是在它完成之前被用来引用c++14标准的名称，所以它很可能是遵循标准的草案，而不是实际的标准本身。两者之间可能有细微的差别，但是c++14是ISO标准。
In short, use c++14
简而言之,使用c++ 14