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a question about "bind2nd" ?

i use a class static member function to for_each:
class t1
{
static test(string s);
}

main()
{
list<string> slist;
...
for_each(slist. begin(), slist.end(), t1::test);
}
this can run, but when i give t1::test a parameter,like this :
class t1
{
static test2(string s, int 5);
}
main()
{
for_each(slist. begin(), slist.end(), bind2nd(t1::tes t2,5) ); //error !!!
for_each(slist. begin(), slist.end(), bind2nd(ptr_fun (t1::test2,5) ) );
//also error !!!
}

how to resolve this problem?

Jul 23 '05 #1
2 1517
flyaflya wrote:
i use a class static member function to for_each:
class t1
{
static test(string s);
}

main()
{
list<string> slist;
...
for_each(slist. begin(), slist.end(), t1::test);
}
this can run, but when i give t1::test a parameter,like this :
class t1
{
static test2(string s, int 5);
}
main()
{
for_each(slist. begin(), slist.end(), bind2nd(t1::tes t2,5) ); //error !!!
for_each(slist. begin(), slist.end(), bind2nd(ptr_fun (t1::test2,5) ) );
//also error !!!
}

how to resolve this problem?


for_each(slist. begin(), slist.end(), bind2nd(ptr_fun (t1::test2),5 ) );
Jul 23 '05 #2
"flyaflya" <fl******@gmail .com> wrote in
news:d3******** **@mail.cn99.co m:
i use a class static member function to for_each:
class t1
{
static test(string s);
}

main()
{
list<string> slist;
...
for_each(slist. begin(), slist.end(), t1::test);
}
this can run, but when i give t1::test a parameter,like this :
class t1
{
static test2(string s, int 5);
}
main()
{
for_each(slist. begin(), slist.end(), bind2nd(t1::tes t2,5) );
//error !!!
for_each(slist. begin(), slist.end(),
bind2nd(ptr_fun (t1::test2,5) ) );
//also error !!!
}

how to resolve this problem?


First, post a short _compilable_ example of your problem. Use copy and
paste, don't attempt to type it in since you may make transcription
errors.

As an example, you don't give the 2nd parameter to test2 a name. And,
Standard C++ doesn't do default return values from functions, so a proper
declaration for main is "int main()"
Jul 23 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

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