Complete, working programs from the C++ tutorial hosted at:
https://learnmoderncpp.com/course-details/
The "headers" subdirectory contains C++ programs with legacy header #includes, whilst the "modules" subdirectory contains the same programs but using the import keyword instead. See https://learnmoderncpp.com/2020/09/05/where-are-c-modules/ for more details about C++ compilers which have support for modules.
All programs compile successfully under Windows with Visual Studio 2019 (v16.8 or later).
The supplied batch scripts build-vs2019-headers.bat and
build-vs2019-modules.bat can be used to compile all of the programs within a Visual Studio command prompt, simply run:
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars32.bat
or similar in a command window, or create a desktop link, and then run either of the build scripts.
Alternatively, to compile individual programs from within a Visual Studio command prompt run either (modules):
cl /EHsc /std:c++latest /experimental:moodule /MD 00-example.cpp
or (headers):
cl /EHsc /std:c++latest 00-example.cpp
substituting the correct file for 00-example.cpp in either case.
To compile individual programs in the "headers" subdirectory under Linux, use:
g++ -std=c++20 -o 00-example 00-example.cpp
or:
clang++ -std=c++20 -o 00-example 00-example.cpp
substituting both occurrencies of 00-example with the correct file name.
Alternatively, run one of the supplied shell scripts build-gcc-headers.sh or build-clang-headers.sh which are supplied in the "headers" subdirectory, or build-clang-modules.sh found in the "modules" subdirectory. (The last of these needs to change import std.core; to import std; for each source file before compilation, using the sed utility.)