While compiling my project which seems extremely primitive
#include <iostream>
int main() {
std::cout << 1;
return 0;
}
I get many similar errors like
E0020 identifier "FLT_RADIX" is undefined smo c:\Program
Files (x86)\Microsoft Visual
Studio\2017\Community\VC\Tools\MSVC\14.10.24930\include\limits 201
and
E0020 identifier "FLT_MIN" is undefined smo c:\Program Files
(x86)\Microsoft Visual
Studio\2017\Community\VC\Tools\MSVC\14.10.24930\include\limits 1084
All errors refer to the limits file. It might be a problem with references to C libs as was mentioned here
Visual studio 2015 gives me errors upon creating a simple test console program
but defining the path to the libs from Windows Kits explicitly didn't solve the problem.
Related
I'm using Boost with a Qt project.
I added these lines to my .pro file.
INCLUDEPATH += C:/local/boost_1_62_0/
LIBS += "-LC:/local/boost_1_62_0/lib64-msvc-12.0/"
I'm linking against boost, as I use a the libICP library, that includes boost/multi_array and boost/array.
When I compile, I get a lot of errors :
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xtree:20: error: C2143: syntax error : missing ',' before '<'
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xtree:21: error: C2518: keyword 'typename' illegal in base class list; ignored
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xtree:22: error: C2518: keyword 'typename' illegal in base class list; ignored
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xtree:132: error: C2065: '_Iterator_base0' : undeclared identifier
I suspect xtree is used by the implementation of multi_array or array, but I don't really know where to go from here.
Ok, so I found the solution (I was working on this issue since yesterday...)
In case someone else has a similar issue, it was just a case of unbalanced } at the end of the file ICP_Registration.h, that includes libICP.
I am using Visual studio version 14.0.25431.01 Update 3. While upgrading an existing project in C++ from VS2k13 to VS2k15, I am getting the following build errors in xlocnum file placed at C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum.
Error C2912 explicit specialization 'void std::numpunct<char>::_Getvals(void)' is not a specialization of a function template Scripttest C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum 192
and
Error C2061 syntax error: identifier '_Elem2' InterPTest C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum 188.
Following code in xlocnum is throwing the error
template<_Elem2>
void _Getvals(_Elem2, const lconv *_Ptr, _Locinfo::_Cvtvec _Cvt)
{ // get values
_Dp = _MAKLOCCHR(_Elem2, _Ptr->decimal_point[0], _Cvt);
_Kseparator = _MAKLOCCHR(_Elem2, _Ptr->thousands_sep[0], _Cvt);
}
After explicitly typenameing template<_Elem2> with template, error resolves but the change has to be made in the windows file xlocnum itself, so its doesn't seem a valid solution. Please suggest a resolution for this issue, Thanks
Im a C# guy thats why I'm lost here, this project claims to have compiled that library for Windows https://soildgeo.codeplex.com/releases/view/108738
the folder comes with Include,Lib64 and Bin64 folders. If I'm not mistaken, I only need to copy .lib files to the VC/lib folder and the folders in include to VC/include folder, so that I can start coding against these APIs, they appear in the #include<> intellisense but then they don't compile. my questions are, are my assumptions on this whole process is right ? if not what are the right steps ? and lastly, do I need to use the Dlls found in Bin64 folder at any point ?
Im using VS2013
Thanks in advance
Edit
1>------ Build started: Project: PhysBAMTest, Configuration: Debug x64 ------
1> main.cpp
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163): error C2146: syntax error : missing ';' before identifier 'attribute'
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163): error C2530: 'PhysBAM::LOG::anonymous-namespace'::cout' : references must be initialized
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163): error C2065: 'unused' : undeclared identifier
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163): error C2143: syntax error : missing ';' before '='
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C2146: syntax error : missing ';' before identifier '__attribute__'
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C2530: 'PhysBAM::LOG::anonymous-namespace'::cerr' : references must be initialized
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C2065: 'unused' : undeclared identifier
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C2374: 'PhysBAM::LOG::anonymous-namespace'::__attribute__' : redefinition; multiple initialization
1> C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(163) : see declaration of 'PhysBAM::LOG::anonymous-namespace'::attribute'
1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\PhysBAM_Tools\Log\LOG.h(164): error C2143: syntax error : missing ';' before '='
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
Edit
after adding the WIN32 macro based on an answer below , I got a linker error this time
Error 1 error LNK2019: unresolved external symbol "class std::basic_ostream > & __cdecl PhysBAM::LOG::cout_Helper(void)" (?cout_Helper#LOG#PhysBAM##YAAEAV?$basic_ostream#DU?$char_traits#D#std###std##XZ) referenced in function "void __cdecl PhysBAM::LOG::anonymous namespace'::dynamic initializer for 'cout''(void)" (??__Ecout#?A0x5bbeb782#LOG#PhysBAM##YAXXZ) C:\Users...\Documents\Visual Studio 2013\Projects\PhysBAMTest\PhysBAMTest\main.obj PhysBAMTest
All those attribute, unused, __attribute__ are what some call GNU-ishms, that is, features specific to the GCC compatible compilers (GCC itself, Clang, ICC and others). But MS VC does not aim for GCC compatibility, so they just don't work.
The people that did the port to Windows managed to remove these construct by using a few precompiler tricks, I think in the file Utilities/PHYSBAM_OVERRIDE.h. But for those to work you have to define the macro WIN32. Do that in the project "C/C++ Preprocessor Settings" page, not in the code, so it will be defined for all the source files at once.
Alternatively, and this IMO would be the correct solution, patch the sources, and replace every occurrence of #ifdef WIN32 or #if defined(WIN32) with #ifdef _WIN32. The macro _WIN32 is always predefined in Win32 and Win64, but the WIN32 is not.
Well, technically you'd have to differentiate each occurence if the issue is about being a Windows system or about being a MSVC compiler (there is a GCC compiler for Windows). And then use _WIN32 for the system dependencies and _MSC_VER for the compiler ones.
And then, if you feel like it, send a patch to the Codeplex project.
UPDATE
About the linker error, that should be easy to fix: just add the necessary "*.lib" file or files to the project. You can add them to the Linker Property Pageof the project.
Additionally what you did with .lib and .h, you need to keep .dll in either in, System32 dir, or in same dir where you have exe.
Answers to this question may help you understand better.
I asked this question earlier and you told me to mention the errors,
so I will mention them now(I couldn't figure out how to continue the last thread I started,all I saw was an "add a comment" button and an "answer your question" button, so I had to correct the questio and ask it again, sorry about that):
My question is the following:
I'm using visual studio 2010 and I'm writing a win32 application(not a console application).
I need to know how to write to a file from this application.
I included these headers: windows.h, stdlib.h, string.h and tchar.h
I wrote a very simple hello world application and it ran just fine.
But when I tried to include iostream and fstream
in my project the compiler gave me the following errors.
1>c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib(21): error C2039: 'abort' : is not a member of '`global namespace''
1>c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib(21): error C2873: 'abort' : symbol cannot be used in a using-declaration
1>c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib(24): error C2039: 'exit' : is not a member of '`global namespace''
1>c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib(24): error C2873: 'exit' : symbol cannot be used in a using-declaration
IntelliSense: the global scope has no "abort" c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib 21 13
IntelliSense: the global scope has no "exit" c:\program files (x86)\microsoft visual studio 10.0\vc\include\cstdlib 24 13
And when I include fstream.h,I get:
error C1083: Cannot open include file: 'fstream.h': No such file or directory c:\users\user\documents\visual studio 2010\projects\helloworld\helloworld\main.cpp 5 1 helloworld
IntelliSense: cannot open source file "fstream.h" c:\users\user\documents\visual studio 2010\projects\helloworld\helloworld\main.cpp 5 1 helloworld
Same thing for iostream.h
Why are these errors occurring?
In C++, you should use <cstdlib> instead of <stdlib.h>, <cstring> instead of <string.h> (assuming you mean the C style strings. If you want C++ std::string, use <string> [without .h].
And you should use <fstream>, not <fstream.h>.
Please check that your :
#include "stdafx.h"
is the first include of you .cpp file.
Write other includes after this one :
#include "stdafx.h"
#include <iostream>
// ... and so on
int main(...) {
}
... this is a quite frequent mistake with Microsoft compilers (see C++ cout gives undeclared identifier).
Probably you wrote #include "iostream" instead of #include <iostream>
May be this helps .. Try to Check your errors reasons from
http://msdn.microsoft.com/en-us/library/et4zwx34%28v=vs.80%29.aspx
According to http://clang.llvm.org/get_started.html
I did the ALL_BUILD on Windows with Visual Studio 2010 and added the built stuff to my system path with $PATH=...ClangSourcBuildPath...\build\bin\Release
I now can compile the following file on the console with:
$> clang file_c.c
//file_c.c
#include <stdio.h>
int main()
{
printf("hello world\n");
return 0;
}
But if I do the same for the following file ($> clang file_cpp.cpp):
//file_cpp.cpp
#include <iostream>
int main()
{
std::cout << "Hello World!";
return 0;
}
I get the following errors:
In file included from file_cpp.cpp:1:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\iostream:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\istream:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\ostream:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\ios:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\streambuf:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\xlocnum:13:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\xiosbase:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\xlocale:11:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\stdexcept:10:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\xstring:9:
In file included from C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\xmemory:15:
C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\utility:81:10:
error: missing 'typename' prior to dependent type name '_It::iterator_category' typedef _It::iterator_category iterator_category;
C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\utility:82:10:
error: missing 'typename' prior to dependent type name '_It::value_type' typedef _It::value_type value_type;
C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\utility:83:10:
error: missing 'typename' prior to dependent type name '_It::distance_type' typedef _It::distance_type distance_type;
C:\Program Files (x86)\Microsoft Visual Studio\VC98\include\utility:224:32:
error: template parameter redefines default argument
template < class _E, class _Tr = char_traits< _E > >
...
I also tried:
$> clang++ file_cpp.cpp
$> clang -x c++ file_cpp.cpp
But I still get the same errors.
Can someone explain me what's wrong?
There are certain flags (I think it was -fms-extensions, not quite sure of the exact option) that are required to get clang to parse the VC++ headers.
The next problem you'll encounter is that the resulting executable cannot be linked. This is due to the fact that clang uses a different name mangling than MSVC, and will result in undefined references.
If you want to use Clang on Windows (which is currently possible with MinGW-w64), you can use my prebuilt packages, you'll need
Clang 3.2
GCC 4.6
Extracted to the same directory. GCC is in this case only used to call the linker. Clang can be used to compile everything.
There is currently no way to use clang for C++ with the Visual Studio headers+libs. C should work, but I haven't tested and there may be other ABI problems preventing this from working.