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c++ Programming Glossary: followingWhat 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 among the syntax rules of translation is specified by the following phases see footnote . Physical source file characters are mapped.. int x void foo int main x 0 foo Y y B b would generate the following errors with gcc home AbiSfw ccvvuHoX.o In function `main' prog.cpp..
What are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier and tag name spaces. Each macro name in any of the following subclauses including the future library directions is reserved.. . All identifiers with external linkage in any of the following subclauses including the future library directions are always.. 154 Each identifier with file scope listed in any of the following subclauses including the future library directions is reserved..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three object is still in the same state as before. None of the following statements will throw an exception strcpy local_name that.name.. safety here. I only mentioned exceptions to make the following point Writing classes that manage resources is hard. Noncopyable..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points is a sequence point here in the evaluation of each of the following expressions after the evaluation of the first expression §1.9.. intermediate sequence points . From the above sentence the following expressions invoke Undefined Behaviour. i i i is modified more.. to `i` `i` gets modified more than once b w two SP But the following expressions are fine i i i 1 1 well defined AFAIK i i i i well..
Why can templates only be implemented in the header file? http://stackoverflow.com/questions/495021/why-can-templates-only-be-implemented-in-the-header-file new class let's call it FooInt which is equivalent to the following struct FooInt int bar void doSomething int param do stuff using..
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 names What exactly are dependent names anyway I have the following code template typename T typename Tail Tail will be a UnionNode.. certain names whether they name types or non types. The following should suffice as an example t f How should this be parsed Usually.. time t x is taken as non type but as an expression the following misses an operator between the two names or a semicolon separating..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope memory be accessed outside its scope I have the following code. int foo int a 5 return a int main int p foo cout p p 8..
When is a C++ destructor called? http://stackoverflow.com/questions/10081429/when-is-a-c-destructor-called its destructor assuming nothing else is pointing to it 2 Following up on question 1 what defines when an object goes out of scope.. on the objects they point to by specifically doing so. 2 Following up on question 1 what defines when an object goes out of scope..
http://stackoverflow.com/questions/1151582/pthread-function-from-a-class c Now i want to create a thread on c.print And the Following is Giving me problem pthread_create t1 NULL c 0 .print NULL..
C++ iterate into nested struct field with boost fusion adapt_struct http://stackoverflow.com/questions/12084781/c-iterate-into-nested-struct-field-with-boost-fusion-adapt-struct how do you iterate into a field which itself is a struct Following the previous answers I come up with the code below. The problem..
how to avoid undefined execution order for the constructors when using std::make_tuple http://stackoverflow.com/questions/14056000/how-to-avoid-undefined-execution-order-for-the-constructors-when-using-stdmake NOTE pseudo code the real code is somewhat more complex Following the discussion below and Xeo's comment it seems that a better..
Does initialization entail lvalue-to-rvalue conversion? Is `int x = x;` UB? http://stackoverflow.com/questions/14935722/does-initialization-entail-lvalue-to-rvalue-conversion-is-int-x-x-ub language lawyer share improve this question UPDATE Following the discussion in the comments I added some more evidence at..
Officially, what is typename for? http://stackoverflow.com/questions/1600936/officially-what-is-typename-for on typename c templates share improve this question Following is the quote from Josuttis book The keyword typename was introduced..
somehow register my classes in a list http://stackoverflow.com/questions/1691473/somehow-register-my-classes-in-a-list the constructor of MyClasses at program startup. UPDATE Following gf suggestion you can write this #define REGISTER_CLASS cls..
When is overloading pass by reference (l-value and r-value) preferred to pass-by-value? http://stackoverflow.com/questions/18303287/when-is-overloading-pass-by-reference-l-value-and-r-value-preferred-to-pass-by const value_type val void push_back value_type val Following the first example where pass by value serves as copy assignment..
Does “&s[0]” point to contiguous characters in a std::string? http://stackoverflow.com/questions/1986966/does-s0-point-to-contiguous-characters-in-a-stdstring that does not use contiguous storage. EDITED TO ADD Following the comments below it is guaranteed by the current standard..
Good C++ array class for dealing with large arrays of data in a fast and memory efficient way? http://stackoverflow.com/questions/2472944/good-c-array-class-for-dealing-with-large-arrays-of-data-in-a-fast-and-memory large arrays of data in a fast and memory efficient way Following on from a previous question relating to heap usage restrictions..
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring does but will give you interesting read wrong results. Following KeithB's point in the comments here's a way to do it that allocates..
Public Data members vs Getters, Setters http://stackoverflow.com/questions/2977007/public-data-members-vs-getters-setters you will find it impossible to push it back in. EDIT Following a comment I made to another answer. My point here is that you..
Can I make GCC warn on passing too-wide types to functions? http://stackoverflow.com/questions/310108/can-i-make-gcc-warn-on-passing-too-wide-types-to-functions I make GCC warn on passing too wide types to functions Following is some obviously defective code for which I think the compiler..
How do you properly use namespaces in C++? http://stackoverflow.com/questions/41590/how-do-you-properly-use-namespaces-in-c namespace MyNamespace MyClass pClass new MyClass Edit Following what bernhardrusch has said I tend not to use the using namespace..
Effective C++ Item 23 Prefer non-member non-friend functions to member functions http://stackoverflow.com/questions/5989734/effective-c-item-23-prefer-non-member-non-friend-functions-to-member-functions not implemented by some classes are implemented in stl. Following the ideas of the book they evolve into some convenience functions..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability e.g. using a dedicated library like libicu. Updates Following many very nice comments I'd like to add a few observations If..
Unicode encoding for string literals in C++11 http://stackoverflow.com/questions/6796157/unicode-encoding-for-string-literals-in-c11 encoding for string literals in C 11 Following a related question I'd like to ask about the new character and..
Where can I find a tool to convert a VS solution to a gcc makefile? http://stackoverflow.com/questions/870533/where-can-i-find-a-tool-to-convert-a-vs-solution-to-a-gcc-makefile Alternatively is there a tool that makes CMake files Edit Following the link below leads me to this http www.winehq.org docs winemaker..
Xcode 4.3 and C++11 include paths http://stackoverflow.com/questions/9345271/xcode-4-3-and-c11-include-paths finds the type_traits header in the right location Update Following @sehe's suggestion ~ clang v fshow source location std c 0x..
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