Error on std::pair when compiling for mac / linux

I have a problem when compiling my code under Mac OS. This function declaration in my header file apparently causes some errors (it does work fine under Windows, though):

#include <string>
#include <vector>
#include <map>

#ifdef WIN32
    #include <windows.h>
#endif

[...]

    int setProcessEnvironment(
        const wchar_t * procName,
        const wchar_t * appName = NULL,
        const wchar_t * workingDir = NULL,
        const wchar_t * cmdArgs = NULL,
        const std::vector< std::pair<const wchar_t *, int> > &systemEnvVars = std::vector< std::pair<const wchar_t *, int> >()
    );

It looks like the compiler doesn't like the input for my pair - maybe I am missing some includes or what is the problem here?

I also don't fully understand the last line of this error message as my function description actually looks very different to the one in th开发者_高级运维is error...

I am starting to think it may have to do with the default initialization, but what is the difference between the Mac and Windows compiler here?

26: error: expected ‘,’ or ‘...’ before ‘>’ token
26: error: wrong number of template arguments (1, should be 2)
/usr/include/c++/4.2.1/bits/stl_pair.h:68: error: provided for ‘template<class _T1, class _T2> struct std::pair’
26: error: template argument 1 is invalid
26: error: template argument 2 is invalid
26: error: default argument missing for parameter 6 of ‘int SysProcManager::setProcessEnvironment(const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const std::vector<std::pair<const wchar_t*, int>, std::allocator<std::pair<const wchar_t*, int> > >&, int)’
159: error: prototype for ‘int SysProcManager::setProcessEnvironment(const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const std::vector<std::pair<const wchar_t*, int>, std::allocator<std::pair<const wchar_t*, int> > >&)’ does not match any in class ‘SysProcManager’
26: error: candidates are: int SysProcManager::setProcessEnvironment(const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const std::vector<std::pair<const wchar_t*, int>, std::allocator<std::pair<const wchar_t*, int> > >&, int)
138: error:                 int SysProcManager::setProcessEnvironment(const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const std::vector<const wchar_t*, std::allocator<const wchar_t*> >&)

Try #include <utility>

this was pointed out by André Caron:

Out of curiosity, can you typedef std::vector< std::pair > EnvironmentBlock; (change the name to your liking). Replace the two instances in your function declaration. See if that clears up any parsing errors.

I am now declaring typedef std::vector< std::pair<const wchar_t*, int> > EnvironmentBlock; at the beginning and it does solve this problem on the Mac and it seems the compiler just can't deal with these nested types properly and screws things up - I did not see this problem on Linux or Windows, so maybe it's time to update my compiler (GCC 4.2).

Thank you Andre!

Several of the errors relate to the fact you have 2 definitions of setProcessEnvironment. One that takes as an added int on the end and another that takes in vector of wchar_t (not a vector of pairs).

I'd focus on these 2 problems to begin with. Failing that we need to see the rest of the code because some of the errors are being generated by code we can't see.