unordered_map Help

[heliroty]

Hi,

I wrote this:

struct eqstr
{
  bool operator()(const char* s1, const char* s2) const
  {
    return strcmp(s1, s2) == 0;
  }
};

  unordered_map<const char*, class c_simbolo *, hash<const char*>, eqstr> tabla;  
  unordered_map<const char*, c_simbolo *, hash<const char*>, eqstr> ::iterator it;  
 unordered_map<const char*, c_simbolo *, hash<const char*>, eqstr> ::iterator it_busquedas; 

But when I try to search wtih this:

c_simbolo *c_tabla_simbolos :: buscar (char *ident)
{
  it_busquedas=tabla.find (ident);

  if (it_busquedas == tabla.end())
    return NULL;	
  else{
    return (*it_busquedas).second;}
}

The function doesn't work. Never find the ident.

If someone could help me I would really apreciate.

[Cubbi]

hash<const char*> is a hash of the value of a pointer, not a hash of the value of some null-terminated array that pointer might be pointing to. Use std::string as the key.

[heliroty]

Thank you so much.

You really helpel me