How to disable optimization for whole project C++ for debug?

Development Programming & Scripting C++
, , , ,
1

Hi!I use a lot

#pragma optimize("", off)

to see variables values in debug mode

but it’s needs to put into each cpp file on the top.
How can I use same pragma macros for whole project at once place and at once time ?

2 Likes
2

At most there is the variable for the module:

OptimizeCode = CodeOptimization.Never;

And it’s probably possible to disable optimization by manually editing vcxproj/props files.

2 Likes
3

What is variable for the module? Where I can find one?

4

If you see a .build.cs file, it’s a module.
Documentation with an incomplete list.
All available module variables can be found in the file …\UE_4.xx\Engine\Source\Programs\UnrealBuildTool\Configuration\ModuleRules.cs
“OptimizeCode” is useful for the custom version of the engine, the game instance is easier to debug with the DebugGame build configuration.

5

Ran into similar issues when using compiler intrinsics, which clashes with some optimization flags. You might also want to disable the creation of precompiled header files via:

// Do not use PCH or Unity builds,
PCHUsage = ModuleRules.PCHUsageMode.NoPCHs;
// Nor Optimization, since intrinsics clash with those options :/
OptimizeCode = CodeOptimization.Never;

That did the trick for me.

1 Like