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hash_set was not declared even I #include<hash_set>
- From: eric <cneric12lin0 at gmail dot com>
- Cc: gcc-help at gcc dot gnu dot org
- Date: Mon, 11 Jul 2011 23:42:55 -0700 (PDT)
- Subject: hash_set was not declared even I #include<hash_set>
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- Newsgroups: comp.lang.c++
Dear advanced c/g++ programers:
I tried the following code
-----------------------------------------------------------------------------------------
// Example 6-8 Storing strings in a hast_set
#include <iostream>
#include <string>
#include <hash_set>
using namespace std;
int main() {
hash_set<std::string> hsString;
string s = "bravo";
hsString.insert(s);
s = "alpha";
hsString.insert(s);
s = "charlie";
hsString.insert(s);
for (hash_set<string>::const_iterator p = hsString.begin();
p != hsString.end(); ++p)
cout << *p << endl; // Note that these aren't guaranteed
// to be in sorted order
}
---------------------------------------------------------------------------------------------------
but I got the following compile error(g++ 4.5.2)
----------------------------------------------------------------
eric@eric-laptop:~/cppcookbook/ch6$ g++ -Wno-deprecated Example6-8.cpp
Example6-8.cpp: In function ‘int main()’:
Example6-8.cpp:9:3: error: ‘hash_set’ was not declared in this scope
Example6-8.cpp:9:23: error: expected primary-expression before ‘>’
token
Example6-8.cpp:9:25: error: ‘hsString’ was not declared in this scope
Example6-8.cpp:18:23: error: expected primary-expression before ‘>’
token
Example6-8.cpp:18:24: error: ‘::const_iterator’ has not been declared
Example6-8.cpp:18:41: error: expected ‘;’ before ‘p’
Example6-8.cpp:19:8: error: ‘p’ was not declared in this scope
eric@eric-laptop:~/cppcookbook/ch6$
---------------------------------------------------------------------
your can get the code to test by yourself
source code
http://examples.oreilly.com/9780596007614/
Thanks your help a lot in advance, Eric