Is Linux support hash_map?

vishal.sahare · 02-10-2011, 04:28 AM

I am compiling the code has hash_map getting following error

Code:

typedef std::hash_map<uint32_t, CTM_ContextData> contexts_map_t;

Compilation Error:

/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:77: error: ISO C++ forbids declaration of 'hash_map' with no type
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:77: error: typedef name may not be a nested-name-specifier
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:77: error: expected ';' before '<' token
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:78: error: 'contexts_map_t' was not declared in this scope
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:78: error: template argument 1 is invalid
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:78: error: template argument 2 is invalid
/vobs/ims_hss1/ctm/inc/CTM_DidMemContextManager.h:85: error: 'contexts_map_t' does not name a type

cytmtn · 02-10-2011, 06:22 AM

Just to be certain... are you using the __gnu_cxx namespace?

Code:

#include <ext/hash_map>
namespace std { using namespace __gnu_cxx; }

References:

Wikipedia hash_map page
Another similar LQ post

vishal.sahare · 02-10-2011, 11:02 PM

Thanks a lot. I was not using it. I will check it.