C++ conflicting namespaces -

i developing c++ project in prj_cpp.h starts as

// prj_cpp.h #include "lib_cpp.h" extern "c" { #include "lib_c.h" }

where lib_cpp.h , lib_c.h header files of external c++ , c libraries respectively.

external c++ library lib_cpp.h uses lib_c in following way.

// lib_cpp.h namespace some_weird_namespace { extern "c" { #include "lib_c.h" } }

because lib_c.h prevents double inclusion, turns out objects in lib_c.h reside in some_weird_namespace has nothing project prj_cpp.

on other hand if header file looks like

// prj_cpp.h extern "c" { #include "lib_c.h" } #include "lib_cpp.h"

i break external c++ project because there nothing under some_weird_namespace because include lib_c.h first.

i not allowed modify neither lib_cpp.h nor lib_c.h

is there can in prj_cpp.h resolve such issue?

i not using some_weird_namespace in project because namespace has nothing it. moreover, number of lib_c.h headers files can large.

if use lib_cpp.h more lib_c.h, replace #include lib_c.h following wrapper:

// lib_c_wrapper.h namespace some_weird_namespace { extern "c" { #include "lib_c.h" } }

if use lib_c.h more lib_cpp.h use following wrapper:

// lib_cpp_wrapper.h #define some_weird_namespace your_namespace #include "lib_cpp.h"

this workaround solve problem.

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