To enable C++14 standards in your compiler, you need to specify certain compiler flags depending on the compiler you are using. Here are the commands for some popular compilers:
// For g++
g++ -std=c++14 your_file.cpp -o your_program
// For clang++
clang++ -std=c++14 your_file.cpp -o your_program
// For MSVC, in the project settings, set the language standard to C++14
// Or you can use the command line option
cl /std:c++14 your_file.cpp
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