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c++ Programming Glossary: charWhy isn't sizeof for a struct equal to the sum of sizeof of each member? http://stackoverflow.com/questions/119123/why-isnt-sizeof-for-a-struct-equal-to-the-sum-of-sizeof-of-each-member struct X short s 2 bytes 2 padding bytes int i 4 bytes char c 1 byte 3 padding bytes struct Y int i 4 bytes char c 1 byte.. char c 1 byte 3 padding bytes struct Y int i 4 bytes char c 1 byte 1 padding byte short s 2 bytes struct Z int i 4 bytes.. short s 2 bytes struct Z int i 4 bytes short s 2 bytes char c 1 byte 1 padding byte const int sizeX sizeof X 12 const int..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior Let's look at a classic example #include iostream int main char p hello n yes I know deprecated conversion p 0 'y' p 5 'w' std.. implementation shall include documentation describing its characteristics and behavior in these respects. Certain other aspects.. translation or program execution in a documented manner characteristic of the environment with or without the issuance of..
Is it possible to write a C++ template to check for a function's existence? http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence test template typename T class has_helloworld typedef char one typedef long two template typename C static one test typeof.. two test ... public enum value sizeof test T 0 sizeof char int main int argc char argv std cout has_helloworld Hello value.. enum value sizeof test T 0 sizeof char int main int argc char argv std cout has_helloworld Hello value std endl std cout has_helloworld..
http://stackoverflow.com/questions/3106110/what-is-move-semantics of memory #include cstring #include algorithm class string char data public string const char p size_t size strlen p 1 data.. algorithm class string char data public string const char p size_t size strlen p 1 data new char size memcpy data p size.. string const char p size_t size strlen p 1 data new char size memcpy data p size Since we chose to manage the memory..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three The person class might have looked like this class person char name int age public the constructor acquires a resource in this.. in this case dynamic memory obtained via new person const char the_name int the_age name new char strlen the_name 1 strcpy.. via new person const char the_name int the_age name new char strlen the_name 1 strcpy name the_name age the_age the destructor..
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 UnionNode T void ... template typename U struct inUnion char fail sizeof U Cannot be instantiated for any U template struct.. label 6.6.4 6.1 An identifier is just a plain sequence of characters digits while the next two are the operator and operator..
Tag editor component for Delphi/C++Builder http://stackoverflow.com/questions/12597678/tag-editor-component-for-delphi-cbuilder HideEditor procedure EditKeyPress Sender TObject var Key Char procedure mnuDeleteItemClick Sender TObject procedure SetMultiLine.. X Integer Y Integer override procedure KeyPress var Key Char override procedure WndProc var Message TMessage override procedure.. procedure TTagEditor.EditKeyPress Sender TObject var Key Char begin if Key chr VK_SPACE and FEdit.Text '' and FNoLeadingSpaceInput..
Range based for loops on null terminated strings http://stackoverflow.com/questions/14477581/range-based-for-loops-on-null-terminated-strings the pointer itself as the range. template typename Char struct null_terminated_range_iterator public make an end iterator.. unless you pass nullptr null_terminated_range_iterator Char ptr ptr ptr blah blah trivial iterator stuff that delegates.. return ptr or by advancing until a null character ptr Char ptr template typename Char using null_terminated_range boost..
Segmentation Fault With Char Array and Pointer in C on Linux http://stackoverflow.com/questions/1773079/segmentation-fault-with-char-array-and-pointer-in-c-on-linux Fault With Char Array and Pointer in C on Linux So I have the following program..
http://stackoverflow.com/questions/2107608/using-generic-methods their corresponding reference types Integer Float Double Char Bool Short which has some overhead. Memory usage is identical..
How does a bit field work with character types? http://stackoverflow.com/questions/3971085/how-does-a-bit-field-work-with-character-types c c char bit manipulation share improve this question Char bit fields work in the same way as int just the base type is..
http://stackoverflow.com/questions/4226829/c-c-char-pointer-crash C Char Pointer Crash Let's say that a function which returns a fixed..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome like this type THouse class private FName array 0..9 of Char public constructor Create name PChar end When you initialize.. FName array 0..9 of Char public constructor Create name PChar end When you initialize the house object the name given to the..
Cross-platform way to get line number of an INI file where given option was found http://stackoverflow.com/questions/8358975/cross-platform-way-to-get-line-number-of-an-ini-file-where-given-option-was-foun sections_t sections_t typedef typename string_t value_type Char qi rule It comment qi rule It Char txt_ch qi rule It textnode_t.. string_t value_type Char qi rule It comment qi rule It Char txt_ch qi rule It textnode_t Skipper key value heading qi rule..
Boost: De-serializing a custom C++ object passed over ZeroMQ pull socket http://stackoverflow.com/questions/14565538/boost-de-serializing-a-custom-c-object-passed-over-zeromq-pull-socket 0xb7411b40 LWP 16645 Connecting to FE... HERE BEGINS CHAR 22 serialization archive 9 0 1 0 0 1 12 Hello there terminate.. const char buf static_cast const char reply.data std cout CHAR buf std endl std string input_data_ buf std istringstream archive_stream.. const char buf static_cast const char reply.data std cout CHAR buf std endl std string input_data_ buf assumes a null term..
Using C++11 regex to capture the contents of a context-free-grammar file http://stackoverflow.com/questions/15351153/using-c11-regex-to-capture-the-contents-of-a-context-free-grammar-file rules DIGIT 0 9 lexer rule containing regex string ' ' CHAR ' ' parser rule containing zero or more lexer rules wrapped.. zero or more lexer rules wrapped in two string literals CHAR LCHAR UCHAR lexer rule containing two lexer rules which will.. or more lexer rules wrapped in two string literals CHAR LCHAR UCHAR lexer rule containing two lexer rules which will later..
How do I properly call the CopyFile function in Visual C++? http://stackoverflow.com/questions/15458312/how-do-i-properly-call-the-copyfile-function-in-visual-c function in Visual C I have a function which takes two CHAR as input viz. int _stdcall FileTrans char InFile char OutFile.. use in Windows. So std wstring is your new replacement for CHAR throughout your code base. Change your declaration of the FileTrans.. std wstring OutFile Note that I've changed your original CHAR parameters to constant references to std wstring objects. Constant..
Programmatically adding a directory to Windows PATH environment variable http://stackoverflow.com/questions/1919125/programmatically-adding-a-directory-to-windows-path-environment-variable that I can find the LPARAM needs to be a pointer to a WCHAR string 2 byte characters as opposed to a CHAR string which is.. to a WCHAR string 2 byte characters as opposed to a CHAR string which is what Visual Studio's compiler generates by default..
send() function returns more bytes that it was required c++ http://stackoverflow.com/questions/19769836/send-function-returns-more-bytes-that-it-was-required-c int retorno CString TextRetorno HEX_bufferMessage new CHAR 7 there are seven bytes specifies the state HEX_bufferMessage..
Iterate through struct variables http://stackoverflow.com/questions/2205583/iterate-through-struct-variables for example struct char _char int _int char pchar enum _CHAR 0 _INT 1 PCHAR 2 int main int i 1 _INT if i 1 then set variable.. struct char _char int _int char pchar enum _CHAR 0 _INT 1 PCHAR 2 int main int i 1 _INT if i 1 then set variable _int of struct.. however do something very similar using boost tuple enum CHAR 0 INT 1 DBL 2 tuple char int double t 'b' 1 3.14 int i get INT..
How do I convert a big-endian struct to a little endian-struct? http://stackoverflow.com/questions/859535/how-do-i-convert-a-big-endian-struct-to-a-little-endian-struct something like this struct RECORD UINT32 foo UINT32 bar CHAR fooword 11 CHAR barword 11 UNIT16 baz I am trying to figure.. this struct RECORD UINT32 foo UINT32 bar CHAR fooword 11 CHAR barword 11 UNIT16 baz I am trying to figure out how I would..
How to get Excel cell value in C++ http://stackoverflow.com/questions/8619530/how-to-get-excel-cell-value-in-c a . To start with here is a code snippet int main int argc CHAR argv CoInitialize NULL HWND excelWindow FindWindow L XLMAIN.. 1 return 0 BOOL CALLBACK EnumChildProc HWND hwnd LPARAM WCHAR szClassName 64 if GetClassNameW hwnd szClassName 64 if _wcsicmp.. std string BOOL CALLBACK EnumChildProc HWND hwnd LPARAM WCHAR szClassName 64 if GetClassNameW hwnd szClassName 64 if _wcsicmp..
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