<![CDATA[fstream + boost]]>Hi,

#pragma once

#include <string>
#include <boost/filesystem/fstream.hpp>
using namespace boost;
using namespace filesystem;
using namespace std;

int main()
{
	fstream f("");
	return 0;
}

1>d:\test\main.cpp(11) : error C2872: 'fstream' : ambiguous symbol
1> could be 'c:\program files\microsoft visual studio 8\vc\include\iosfwd(714) : std::basic_fstream<_Elem,_Traits> std::fstream'
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> or 'c:\boost\include\boost-1_33_1\boost\filesystem\fstream.hpp(182) : boost::filesystem::fstream'

???

]]>https://www.c-plusplus.net/forum/topic/180822/fstream-boostRSS for NodeMon, 21 Sep 2026 22:48:16 GMTMon, 07 May 2007 07:53:37 GMT60<![CDATA[Reply to fstream + boost on Mon, 07 May 2007 07:53:37 GMT]]>Hi,

#pragma once

#include <string>
#include <boost/filesystem/fstream.hpp>
using namespace boost;
using namespace filesystem;
using namespace std;

int main()
{
	fstream f("");
	return 0;
}

1>d:\test\main.cpp(11) : error C2872: 'fstream' : ambiguous symbol
1> could be 'c:\program files\microsoft visual studio 8\vc\include\iosfwd(714) : std::basic_fstream<_Elem,_Traits> std::fstream'
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> or 'c:\boost\include\boost-1_33_1\boost\filesystem\fstream.hpp(182) : boost::filesystem::fstream'

???

]]>https://www.c-plusplus.net/forum/post/1280079https://www.c-plusplus.net/forum/post/1280079Mon, 07 May 2007 07:53:37 GMT<![CDATA[Reply to fstream + boost on Mon, 07 May 2007 07:55:07 GMT]]>Na dann würde ich doch mal explizit angeben, welches von beiden du meisnt. Das passiert eben, wenn man einfach alle Namensräume einbindet.

]]>https://www.c-plusplus.net/forum/post/1280081https://www.c-plusplus.net/forum/post/1280081Mon, 07 May 2007 07:55:07 GMT<![CDATA[Reply to fstream + boost on Mon, 07 May 2007 08:04:04 GMT]]>Ich will natürlich den 1337 boost fstream. Ich wusste nur noch, dass <string> mir auch <fstream> reinhaut 😞

]]>https://www.c-plusplus.net/forum/post/1280085https://www.c-plusplus.net/forum/post/1280085Mon, 07 May 2007 08:04:04 GMT<![CDATA[Reply to fstream + boost on Mon, 07 May 2007 08:05:19 GMT]]>Ahso. <boost/filesystem/fstream.hpp> haut mit den <fstream> rein. Mmmmh. Was sol ich jetzt machen? Immer explizit filesystem::fstream schreiben?

]]>https://www.c-plusplus.net/forum/post/1280087https://www.c-plusplus.net/forum/post/1280087Mon, 07 May 2007 08:05:19 GMT<![CDATA[Reply to fstream + boost on Mon, 07 May 2007 08:14:43 GMT]]>Kurze Antwort: Ja.

Lange Antwort: Alternativ kannst du auch das 'using namspace std;' weglassen und nur die Namen in den globalen Namensraum ziehen, die du wirklich benötigst (z.B. per 'using std::string;').

]]>https://www.c-plusplus.net/forum/post/1280091https://www.c-plusplus.net/forum/post/1280091Mon, 07 May 2007 08:14:43 GMT