Question

I have a large class ClassA that I defined in a Code::Blocks Project ProjectA. ProjectA compiles fine, but when I try to use ClassA in a different project ProjectB, I start getting errors like

C:\ProjectA\ClassA.cpp|17|error: boost/foreach.hpp: No such file or directory|
C:\ProjectA\ClassA.cpp|649|error: 'strlen' was not declared in this scope|

also one of these for every function in cstring

c:\program files (x86)\codeblocks\mingw\bin\..\lib\gcc\mingw32\4.4.1\include\c++\cstring|76|error: '::memchr' has not been declared|

I added both ClassA.h and ClassA.cpp to ProjectB and added the folder for ProjectA to the directories searched in ProjectB.

I saw this question addressing a similar error, but I don’t use C, so it would be weird for my projects to suddenly start trying to compile in C. However, I don’t want to completely dismiss the possibility, so I would also like to know how to check whether a project is compiling in C or C++ in Code::Blocks.

Using files from multiple projects has been working for me up until today, so I’m at a total loss for what could be wrong. Thanks in advance for your answers!

Answer 1

It sounds like ProjectB has different include paths, ensure that it has the equivalent to ProjectA. Usually you would setup boost in an external directory.