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c++ Programming Glossary: size

Why 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

isn't sizeof for a struct equal to the sum of sizeof of each member Why.. isn't sizeof for a struct equal to the sum of sizeof of each member Why does the 'sizeof' operator return a size.. equal to the sum of sizeof of each member Why does the 'sizeof' operator return a size larger for a structure than the total..

What is move semantics?

http://stackoverflow.com/questions/3106110/what-is-move-semantics

class string char data public string const char p size_t size strlen p 1 data new char size memcpy data p size Since.. class string char data public string const char p size_t size strlen p 1 data new char size memcpy data p size Since we chose.. 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 ourselves..

What is the copy-and-swap idiom?

http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom

#include algorithm std copy #include cstddef std size_t class dumb_array public default constructor dumb_array std.. class dumb_array public default constructor dumb_array std size_t size 0 mSize size mArray mSize new int mSize 0 copy constructor.. public default constructor dumb_array std size_t size 0 mSize size mArray mSize new int mSize 0 copy constructor..

How do I use arrays in C++?

http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c

as T n where T is the element type and n is a positive size the number of elements in the array. The array type is a product.. array type is a product type of the element type and the size. If one or both of those ingredients differ you get a distinct.. type static_assert std is_same int 8 int 9 value distinct size Note that the size is part of the type that is array types of..

What are the differences between pointer variable and reference variable in C++?

http://stackoverflow.com/questions/57483/what-are-the-differences-between-pointer-variable-and-reference-variable-in-c

5 int y 6 int r x A pointer has its own memory address and size on the stack 4 bytes on x86 whereas a reference shares the same.. to and 4 to go to the 5th element. This is no matter what size the object is that the pointer points to. A pointer needs to..

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

T void ... template typename U struct inUnion char fail sizeof U Cannot be instantiated for any U template struct inUnion.. types T1...Tn and I try to typedef an array with negative size. c templates c 11 c faq dependent name share improve this..

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

thread and the stack is allocated to be a certain fixed size. When you call a method stuff is pushed onto the stack. If you..

Marshal C++ struct array into C#

http://stackoverflow.com/questions/188299/marshal-c-struct-array-into-c-sharp

LPRData char 15 MarshalAsAttribute UnmanagedType.ByValTStr SizeConst 15 public string data int 15 MarshalAsAttribute UnmanagedType.ByValArray.. data int 15 MarshalAsAttribute UnmanagedType.ByValArray SizeConst 15 public int prob And if I initialize an array of 3 of.. your struct decloration StructLayout LayoutKind.Sequential Size TotalBytesInStruct Serializable public struct LPRData char 15..

Size of character ('a') in C/C++

http://stackoverflow.com/questions/2172943/size-of-character-a-in-c-c

of character 'a' in C C What is the size of character in C.. in both C and C . In C #include stdio.h int main printf Size of char d n sizeof char return 0 In C #include iostream int.. char return 0 In C #include iostream int main std cout Size of char sizeof char n return 0 No surprises both of them gives..

Guaranteed lifetime of temporary in C++?

http://stackoverflow.com/questions/584824/guaranteed-lifetime-of-temporary-in-c

m_buffer.push_back 0 ~StringBuffer m_str m_buffer 0 char Size int maxlength m_buffer.resize maxlength 1 0 return m_buffer.. std string mystring GetString StringBuffer mystring .Size MAXLEN MAXLEN When will the destructor for the temporary StringBuffer..

How to determine CPU and memory consumption from inside a process?

http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process

here. In reality this parameter gives the Virtual Memory Size which is size of swap file plus installed RAM. Virtual Memory.. process and then SIZE_T physMemUsedByMe pmc.WorkingSetSize CPU currently used #include TCHAR.h #include pdh.h static PDH_HQUERY.. line 128 while fgets line 128 file NULL if strncmp line VmSize 7 0 result parseLine line break fclose file return result..

Executing cv::warpPerspective for a fake deskewing on a set of cv::Point

http://stackoverflow.com/questions/7838487/executing-cvwarpperspective-for-a-fake-deskewing-on-a-set-of-cvpoint

warpPerspective src dst dst.size ... use cv Mat rotated cv Size size box.boundingRect .width box.boundingRect .height cv warpPerspective.. src_vertices dst_vertices cv Mat rotated cv Size size box.boundingRect .width box.boundingRect .height warpPerspective.. src_vertices dst_vertices cv Mat rotated cv Size size box.boundingRect .width box.boundingRect .height warpAffine..

OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection

http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection

CV_8U gray int thresh 50 N 11 cv pyrDown _image pyr cv Size _image.cols 2 _image.rows 2 cv pyrUp pyr timg _image.size std..

How do I declare a 2d array in C++ using new?

http://stackoverflow.com/questions/936687/how-do-i-declare-a-2d-array-in-c-using-new

using new Like for a normal array I would int ary new int Size but int ary new int sizeY sizeX a doesn't work compile and b..

Why is my program slow when looping over exactly 8192 elements?

http://stackoverflow.com/questions/12264970/why-is-my-program-slow-when-looping-over-exactly-8192-elements

from the program in question. The matrix img has the size SIZE SIZE and is initialized at img j i 2 j i Then you make a matrix.. the program in question. The matrix img has the size SIZE SIZE and is initialized at img j i 2 j i Then you make a matrix res.. matrix. The border is left at 0 for simplicity. for i 1 i SIZE 1 i for j 1 j SIZE 1 j res j i 0 for k 1 k 2 k for l 1 l 2..