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c++ Programming Glossary: compileDetecting endianness programmatically in a C++ program http://stackoverflow.com/questions/1001307/detecting-endianness-programmatically-in-a-c-program based on type punning it will often be warned against by compiler. That's exactly what unions are for int is_big_endian void.. This is also much better than fixing the endianness at compile time for OS which support multi architecture fat binary on Mac..
What is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix referred to as linking. It basically means that you compiled a bunch of implementation files into object files or libraries.. use that .lib if any . Similar mechanism exist for other compilers platforms. Common error messages are error LNK2001 error LNK1120.. to link against appropriate libraries object files or compile implementation files Declared and undefined variable or function...
Most vexing parse: why doesn't A a(()); work? http://stackoverflow.com/questions/1424510/most-vexing-parse-why-doesnt-a-a-work an extra set of brackets parenthesis around the B as the compiler will then interpret it as the declaration of an object A a.. However in the second case doing the same leads to a compile error A a compile error My question is why Yes I'm very well.. second case doing the same leads to a compile error A a compile error My question is why Yes I'm very well aware that the correct..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets parse . Basically anything that can be interpreted by compiler as function declaration will be interpreted as function declaration.. as function declaration even if resulting AST doesn't compile. Another instance of the same problem std ifstream ifs file.txt.. a declaration of function with 2 parameters and fails to compile. The workaround is to add another pair of parentheses std vector..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior that do not behave in a predictable way even though many C compilers will not report any errors in the program Let's look at a.. is undefined. I can hear people screaming But wait I can compile this no problem and get the output yellow or What do you mean..
Undefined reference to static class member http://stackoverflow.com/questions/272900/undefined-reference-to-static-class-member class member Can anyone explain why following code won't compile At least on g 4.2.4. And more interesting why it will compile.. At least on g 4.2.4. And more interesting why it will compile when I cast MEMBER to int #include vector class Foo public static..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast while the equivalent static_cast sequence would give you a compile time error for that. Some people prefer c style casts because..
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special constructor as long as they are implicitly declared by the compiler and not explicitly by the user No private or protected non.. see below for the explanation of the term else if m n the compiler will issue an error else this is the case when n isn't specified.. the members which were not explicitly initialized we get a compile time error. If there are more initializers than necessary we..
http://stackoverflow.com/questions/4421706/operator-overloading code right. If you fail either your operator ™s code won ™t compile or your users code won ™t compile or your users code will behave.. operator ™s code won ™t compile or your users code won ™t compile or your users code will behave surprisingly. Assignment Operator.. prefer prefix increment over postfix increment. While compilers can usually optimize away the additional work of postfix increment..
Why do I get “unresolved external symbol” errors when using templates? http://stackoverflow.com/questions/456713/why-do-i-get-unresolved-external-symbol-errors-when-using-templates e.g. the program source . When the template is used the compiler needs the full code for that function to be able to build the.. file and hence unavailable. As a result of all this the compiler just assumes that it's defined elsewhere and only inserts the.. the call to the templated function. When it comes to compile the template's source file the specific template type that is..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers for char and wchar_t delimiters Enable these if you have compiler support Implement as template T C A const sdelims type sdelims.. It was a conscious design decision to make the delimiters compile time constants rather than object constants. That means that..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords I should be able to add template somewhere to tell the compiler that inUnion is a template id. But where exactly And should.. Trying to cast a Union bool float to std string is a compile time error. The simple solution was to add a template typename.. parse t x f The answer is In this case we decide how the compiler should parse this. If t x is a dependent name then we need..
Seeking and reading large files in a Linux C++ application http://stackoverflow.com/questions/1035657/seeking-and-reading-large-files-in-a-linux-c-application has a great overviw of large file support on linux Compile your programs with gcc D_FILE_OFFSET_BITS 64 . This forces all..
Best bignum library to solve Project Euler problems in C++? http://stackoverflow.com/questions/1047203/best-bignum-library-to-solve-project-euler-problems-in-c to include and you have unbelievable power simplicity. Compiles like magic in Visual C 2008 express. It is fast because it.. and Visual Studio 2008 GMP Install Help at CodeGuru GMP Compile Guide at The Edge Of Nowhere this one looks really thorough..
What is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one of scope the MyObject is automatically destroyed. ptr Oops Compile error ptr not defined since it is no longer in scope. Note..
Best introduction to C++ template metaprogramming? http://stackoverflow.com/questions/112277/best-introduction-to-c-template-metaprogramming For metaprogramming in particular see sections 2.1 Compile Time Assertions 2.4 Mapping Integral Constants to Types 2.6.. Selection 2.7 Detecting Convertibility and Inheritance at Compile Time 2.9 NullType and EmptyType and 2.10 Type Traits . The best..
How to create a DLL with SWIG from Visual Studio 2010 http://stackoverflow.com/questions/11693047/how-to-create-a-dll-with-swig-from-visual-studio-2010 .py . Click OK. Right click the .i file and select Compile. Right click the project Add New Filter name it Generated Files..
C++11: Compile-time Array with Logarithmic Evaluation Depth http://stackoverflow.com/questions/13072359/c11-compile-time-array-with-logarithmic-evaluation-depth 11 Compile time Array with Logarithmic Evaluation Depth One way to implement..
Compile time sizeof_array without using a macro http://stackoverflow.com/questions/1500363/compile-time-sizeof-array-without-using-a-macro time sizeof_array without using a macro This is just something..
Why don't STL containers have virtual destructors? http://stackoverflow.com/questions/1647298/why-dont-stl-containers-have-virtual-destructors container because the owner returns a true STL container . Compile time polymorphism Can be somewhat tricky to do write requires..
How do I write a short literal in C++? http://stackoverflow.com/questions/208433/how-do-i-write-a-short-literal-in-c you should worry about this a 2L b 2.0 c short 2 d ' 2' Compile disassemble movl 2 _a movl 2 _b movl 2 _c movl 2 _d share..
http://stackoverflow.com/questions/2111667/compile-time-string-hashing time string hashing I have read in few different places that..
How to compile dynamic library for a JNI application on linux? http://stackoverflow.com/questions/3950635/how-to-compile-dynamic-library-for-a-jni-application-on-linux where I think I screwed up. I was inspired by this guide Compile the Dynamic or Shared Object Library section dierre@cox ~ Scrivania..
Common array length macro for C? http://stackoverflow.com/questions/4415524/common-array-length-macro-for-c for more details. There's a better option for C code. See Compile time sizeof_array without using a macro for details. share..
http://stackoverflow.com/questions/5854581/polymorphism-in-c x 2 run time polymorphic dispatch Other related mechanisms Compiler provided polymorphism for builtin types Standard conversions.. at run time the correct code is selected virtual dispatch Compile time means the choice of type specific code is made during compilation... to user defined types std string x int y 0 x 'c' y 'c' Compiler provided overloads for basic types is common in high level..
How to Compile for OS X in Linux or Windows? http://stackoverflow.com/questions/693952/how-to-compile-for-os-x-in-linux-or-windows to Compile for OS X in Linux or Windows I would like to port my C C apps..
http://stackoverflow.com/questions/778590/calling-c-sharp-code-from-c C# functions c# c interop share improve this question Compile your C code with the clr flag. With that you can call into any..
“string could not resolved” error in eclipse for C++ http://stackoverflow.com/questions/7905025/string-could-not-resolved-error-in-eclipse-for-c the Current toolchain to the original value click Apply Compile your project Detailed fix Before proceeding check if your toolchain..
Compile a DLL in C/C++, then call it from another program http://stackoverflow.com/questions/847396/compile-a-dll-in-c-c-then-call-it-from-another-program a DLL in C C then call it from another program I want to make..
Check at Compile-Time if Template Argument is void http://stackoverflow.com/questions/9625526/check-at-compile-time-if-template-argument-is-void at Compile Time if Template Argument is void I'm trying to wrap the Windows..
C++ function pointer (class member) to non-static member function http://stackoverflow.com/questions/990625/c-function-pointer-class-member-to-non-static-member-function Foo f f.setFunc false return f. do_something 5 Not ok. Compile error. How can I get this to work c function pointers share..
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