Are there techniques to greatly improve C++ building time for 3D applications?

Question

There are many slim laptops who are just cheap and great to use. Programming has the advantage of being done in any place where there is silence and comfort, since concentrating

Answer 1

As Mr. Yellow indicated in a comment, one of the best ways to improve compile times is to pay careful attention to your use of header files. In particular:

• Use precompiled headers for any header that you don't expect to change including operating system headers, third party library headers, etc.
• Reduce the number of headers included from other headers to the minimum necessary.
  • Determine whether a include is needed in the header or whether it can be moved to cpp file. This sometimes causes a ripple effect because someone else was depending on you to include the header for it, but it is better in the long term to move the include to the place where it's actually needed.
  • Using forward declared classes, etc. can often eliminate the need to include the header in which that class is declared. Of course, you still need to include the header in the cpp file, but that only happens once, as opposed to happening every time the corresponding header file is included.
• Use #pragma once (if it is supported by your compiler) rather than include guard symbols. This means the compiler does not even need to open the header file to discover the include guard. (Of course many modern compilers figure that out for you anyway.)

Once you have your header files under control, check your make files to be sure you no longer have unnecessary dependencies. The goal is to rebuild everything you need to, but no more. Sometimes people err on the side of building too much because that is safer than building too little.