Re: stl map error error C2440

From:
"Bo Persson" <bop@gmb.dk>
Newsgroups:
comp.lang.c++
Date:
Mon, 5 Oct 2009 18:24:33 +0200
Message-ID:
<7iuktlF2u7g2uU1@mid.individual.net>
swtsvn wrote:

hey all,
I am attempting to use map with VC 2005. where i need to map one
integer value to another integer
for e.g 2:5
4:5
the actual use is to map a common int value with direct input
values.

here is the code

SN_Input.cpp

//initializes the map
void SN_Input::init_keymap(){
//vector
vector<int>* vec=new vector<int>;
vec->push_back(KEYBOARD_PARAM::LEFT_ARROW);
vec->push_back(DIK_LEFT);

keyMap=new map<int,int>();
keyMap->insert(vec->begin(),vec->end());


Here it seems like keyMap is a pointer.

}

// function to see if a key is pressed or not, called from a
different file game.cpp
bool SN_Input::isKeyPressed(int key){
int value=keyMap[KEYBOARD_PARAM::LEFT_ARROW];


Here it does not. Is this line 197?

if(fDIKeyboardState[value] & 0x80){
return TRUE;
}
return FALSE;
}

it gives me the following error:
1>c:\users\suja\documents\visual studio 2005\projects\sujatha-ase-
project\sujatha-ase-project\sn_input.cpp(197) : error C2440:
'initializing' : cannot convert from 'std::map<_Kty,_Ty>' to 'int *'
1> with
1> [
1> _Kty=int,
1> _Ty=int
1> ]
1> No user-defined-conversion operator available that can
perform this conversion, or the operator cannot be called


Bo Persson

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