map and for_each problem

[Mehturt]

Hi.. I have came across this problem, I don't know why it does not
work..
Thanks for your explanations..
m

#include <map>
#include <algorithm>

struct fo
{
void operator() (const std:air<int, int>& pr)
{ }

void operator() (const std:air<int, void*>& pr)
{ }
};

int main()
{
std::map<int, int> m;
std::map<int, void*> m2;

std::for_each(m.begin(), m.end(), fo());
std::for_each(m2.begin(), m2.end(), fo());

return 0;
}

 

[=?ISO-8859-1?Q?Stefan_N=E4we?=]

Hi.. I have came across this problem, I don't know why it does not
work..
Thanks for your explanations..
m

#include <map>
#include <algorithm>

struct fo
{
void operator() (const std:air<int, int>& pr)

{ }

void operator() (const std:air<int, void*>& pr)

{ }
};

int main()
{
std::map<int, int> m;
std::map<int, void*> m2;

std::for_each(m.begin(), m.end(), fo());
std::for_each(m2.begin(), m2.end(), fo());

return 0;
}

Check your local documentation of std::map::value_type.

/S

 

[Mehturt]

Check your local documentation of std::map::value_type.

I did, and now what?

 

[Kai-Uwe Bux]

Hi.. I have came across this problem, I don't know why it does not
work..
Thanks for your explanations..
m

#include <map>
#include <algorithm>

struct fo
{
void operator() (const std:air<int, int>& pr)

{ }

void operator() (const std:air<int, void*>& pr)

{ }
};

int main()
{
std::map<int, int> m;
std::map<int, void*> m2;

std::for_each(m.begin(), m.end(), fo());
std::for_each(m2.begin(), m2.end(), fo());

return 0;
}

std::map<key_type,mapped_type> does not store data as

std:air< key_type, mapped_type >

but as

std:air< key_type const, mapped_type >.


Best

Kai-Uwe Bux

 

[Mehturt]

std:air< key_type, mapped_type >

but as

std:air< key_type const, mapped_type >.

Great, thanks for your help..

 

[=?ISO-8859-1?Q?Stefan_N=E4we?=]

I did, and now what?

You noticed that

std::map<T, U>::value_type

is

std:air<const T, U> // Note the *const*

and not

std:air<T, U>

,didn't you ?


/S

 

[Mehturt]

You noticed that

std::map<T, U>::value_type

is

std:air<const T, U> // Note the *const*

and not

std:air<T, U>

,didn't you ?

Now I did but you could mention that in your 1st post..

 

[Jim Langston]

You noticed that

std::map<T, U>::value_type

is

std:air<const T, U> // Note the *const*

and not

std:air<T, U>

,didn't you ?

Now I did but you could mention that in your 1st post..

He did. He had shown the code fixes, but without any white space they're a
little hard to see.

 

[=?ISO-8859-15?Q?Stefan_N=E4we?=]

Now I did but you could mention that in your 1st post..

He did. He had shown the code fixes, but without any white space they're a
little hard to see.

Mea Culpa...

/S

 

[Mehturt]

Now I did but you could mention that in your 1st post..

He did. He had shown the code fixes, but without any white space they're a
little hard to see.

Oh sorry about that, now I see it
Thanks a lot