help with boost

[Kamran]

Hi,

Having problem with boost and stuck.
I have the following:

std::map <std::string, boost::anybinaryHeader;

and somewere else I write:
---------------
binaryHeader.insert(make_pair("job", 0));
binaryHeader.insert(make_pair("line", 0));
binaryHeader.insert(make_pair("reel", 0));
binaryHeader.insert(make_pair("Ensemble", 0));
---------------

further down in another function the following does not work:

---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++)
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<short>((*iter).second) << endl;
---------------
whereis this works perfectly(replacing <shortwith <int>):
---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++) {
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<int>((*iter).second) << endl;
----------------


What is wrong ? Isn't "boost::any" supposed to take 'any' type ?

Thanks in advance

Kamran

[Victor Bazarov]

Kamran wrote:

Hi,

Having problem with boost and stuck.
[..]

Did you know that Boost has its own online forum? Just checking...

[mlimber]

Kamran wrote:

Having problem with boost and stuck.
I have the following:

std::map <std::string, boost::anybinaryHeader;

and somewere else I write:
---------------
binaryHeader.insert(make_pair("job", 0));
binaryHeader.insert(make_pair("line", 0));
binaryHeader.insert(make_pair("reel", 0));
binaryHeader.insert(make_pair("Ensemble", 0));
---------------
further down in another function the following does not work:
---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++)
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<short>((*iter).second) << endl;
---------------
whereis this works perfectly(replacing <shortwith <int>):
---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++) {
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<int>((*iter).second) << endl;
----------------
What is wrong ? Isn't "boost::any" supposed to take 'any' type ?

For help with portions of Boost that are not part of TR1, you should
ask on the Boost User list. See this FAQ for what is on-topic here:

http://www.parashift.com/c++-faq-lit...t.html#faq-5.9

<OT>The second loop is correct because you made pairs of strings and
integers (the default type for numeric literals). If you do something
like 'make_pair( "hi", short(0) )', then the first loop should
work.</OT>

Cheers! --M

[Kamran]

mlimber wrote:

Kamran wrote:

>>Having problem with boost and stuck.
I have the following:

std::map <std::string, boost::anybinaryHeader;

and somewere else I write:
---------------
binaryHeader.insert(make_pair("job", 0));
binaryHeader.insert(make_pair("line", 0));
binaryHeader.insert(make_pair("reel", 0));
binaryHeader.insert(make_pair("Ensemble", 0));
---------------
further down in another function the following does not work:
---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++)
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<short>((*iter).second) << endl;
---------------
whereis this works perfectly(replacing <shortwith <int>):
---------------
for( map<std::string, boost::any>::iterator iter =
binaryHeader.begin(); iter != binaryHeader.end(); iter++) {
cout << any_cast<string>((*iter).first) << " is " <<
boost::any_cast<int>((*iter).second) << endl;
----------------
What is wrong ? Isn't "boost::any" supposed to take 'any' type ?

For help with portions of Boost that are not part of TR1, you should
ask on the Boost User list. See this FAQ for what is on-topic here:

http://www.parashift.com/c++-faq-lit...t.html#faq-5.9

<OT>The second loop is correct because you made pairs of strings and
integers (the default type for numeric literals). If you do something
like 'make_pair( "hi", short(0) )', then the first loop should
work.</OT>

Cheers! --M

Thanks a lot. It worked. And sorry, I was not aware that there was a
mailing list for boost though I should have known.

Kamran

[noone]

Thanks a lot. It worked. And sorry, I was not aware that there was a
mailing list for boost though I should have known.

you shouldn't have to sign up for a stinkin mailing list for every tool
you want help with. If I did then I'd be subscribed to several hundred
and would never get thru all the irrelevant emails. projects SHOULD use
USENET as a preferred support forum.

[Alf P. Steinbach]

* noone:

>Thanks a lot. It worked. And sorry, I was not aware that there was a
mailing list for boost though I should have known.

you shouldn't have to sign up for a stinkin mailing list for every tool
you want help with. If I did then I'd be subscribed to several hundred
and would never get thru all the irrelevant emails. projects SHOULD use
USENET as a preferred support forum.

<url: news://news.gmane.org/gmane.comp.lib.boost.devel>

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

[noone]

On Sat, 29 Jul 2006 09:24:32 +0200, Alf P. Steinbach wrote:

* noone:

>>Thanks a lot. It worked. And sorry, I was not aware that there was a
mailing list for boost though I should have known.

you shouldn't have to sign up for a stinkin mailing list for every tool
you want help with. If I did then I'd be subscribed to several hundred
and would never get thru all the irrelevant emails. projects SHOULD use
USENET as a preferred support forum.

<url: news://news.gmane.org/gmane.comp.lib.boost.devel>

lemme rephrase, projects should allow ANONYMOUS USENET as a preferred
support forum.

[Alf P. Steinbach]

* noone:

On Sat, 29 Jul 2006 09:24:32 +0200, Alf P. Steinbach wrote:

>* noone:

>>>Thanks a lot. It worked. And sorry, I was not aware that there was a
mailing list for boost though I should have known.
you shouldn't have to sign up for a stinkin mailing list for every tool
you want help with. If I did then I'd be subscribed to several hundred
and would never get thru all the irrelevant emails. projects SHOULD use
USENET as a preferred support forum.

<url: news://news.gmane.org/gmane.comp.lib.boost.devel>

lemme rephrase, projects should allow ANONYMOUS USENET as a preferred
support forum.

Well, I don't know what "anonymous usenet" is and I'm an old hand.

Anyway, it's off-topic. <g>

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?