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c++ Programming Glossary: shortWhat 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 f typedef std tr1 shared_ptr MyObject MyObjectPtr Nice short alias. MyObjectPtr p1 Empty MyObjectPtr p2 new MyObject There..
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 using typical settings for an x86 processor 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 1 padding byte short s 2 bytes struct Z int i 4 bytes short s 2 bytes char c 1 byte.. 1 padding byte 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..
What are rvalues, lvalues, xvalues, glvalues, and prvalues? http://stackoverflow.com/questions/3601602/what-are-rvalues-lvalues-xvalues-glvalues-and-prvalues question I guess this document might serve as a not so short introduction n3055 The whole massacre began with the move semantics...
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring i std cout static_cast unsigned int static_cast unsigned short wtext i std cout std endl std endl return 0 outputs the following..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points execution with the issuance of a diagnostic message . In short undefined behaviour means anything can happen from daemons flying..
http://stackoverflow.com/questions/589575/size-of-int-long-etc on a 32 bit architecture. Here is what I get char 1 byte short 2 bytes int 4 bytes long 4 bytes float 4 bytes double 8 bytes.. success reliable information stating the sizes of char short int long double float and other types I didn't think of under.. 127 or 0 to 255 depends on default char signedness signed short 32767 to 32767 unsigned short 0 to 65535 signed int 32767 to..
Is short-circuiting boolean operators mandated in C/C++? And evaluation order? http://stackoverflow.com/questions/628526/is-short-circuiting-boolean-operators-mandated-in-c-c-and-evaluation-order short circuiting boolean operators mandated in C C And evaluation.. Does the ANSI standard mandate logic operators to be short circuited in either C or C I'm confused for I recall the K R.. your code shouldn't depend on these operations being short circuited for they may not. Could someone please point out where..
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 it is no longer needed. The second is to have some sort of short lived storage area where the lifetime of each byte in the storage.. That is the allocation of the longest lived of the short lived variables strictly overlaps the allocations of shorter.. short lived variables strictly overlaps the allocations of shorter lived variables that come after it. Local variables follow..
Why can't you use offsetof on non-POD strucutures in C++? http://stackoverflow.com/questions/1129894/why-cant-you-use-offsetof-on-non-pod-strucutures-in-c problem is. c offsetof share improve this question Short answer offsetof is a feature that is only in the C standard..
http://stackoverflow.com/questions/162941/why-use-pointers this question Why use pointers over normal variables Short answer is Don't. Pointers are to be used where you can't use.. More below... When and where should I use pointers Short answere here is Where you cannot use anything else. In C you..
Can you allocate a very large single chunk of memory ( > 4GB ) in c or c++? http://stackoverflow.com/questions/181050/can-you-allocate-a-very-large-single-chunk-of-memory-4gb-in-c-or-c or new. c c memory malloc share improve this question Short answer Not likely In order for this to work you absolutely would..
C++ templates Turing-complete? http://stackoverflow.com/questions/189172/c-templates-turing-complete part of the question Is this fact useful in practice Short Answer Sort of. Long Answer Yes but only if you are a template..
Is Short Circuit Evaluation guaranteed In C++ as it is in Java? http://stackoverflow.com/questions/2108467/is-short-circuit-evaluation-guaranteed-in-c-as-it-is-in-java Short Circuit Evaluation guaranteed In C as it is in Java In Java..
How do I clear the console in BOTH Windows and Linux using C++ http://stackoverflow.com/questions/228617/how-do-i-clear-the-console-in-both-windows-and-linux-using-c console cross platform share improve this question Short answer you can't. Longer answer Use a curses library ncurses..
Floating point vs integer calculations on modern hardware http://stackoverflow.com/questions/2550281/floating-point-vs-integer-calculations-on-modern-hardware variable doesn't help I am running on a virtual server . Short of spending my entire day running hundreds of benchmarks making..
Why are Hexadecimal Prefixed as 0x? http://stackoverflow.com/questions/2670639/why-are-hexadecimal-prefixed-as-0x of 0x. c# c c syntax hex share improve this question Short story The 0 tells the parser it's dealing with a constant and..
Is it possible to program iPhone in C++ http://stackoverflow.com/questions/270455/is-it-possible-to-program-iphone-in-c etc c iphone objective c share improve this question Short answer yes sort of. You can use Objective C which you can read..
References Needed for Implementing an Interpreter in C/C++ http://stackoverflow.com/questions/294852/references-needed-for-implementing-an-interpreter-in-c-c all c lisp interpreter share improve this question Short answer The fundamental reading list for a lisp interpreter is..
In C++, is it still bad practice to return a vector from a function? http://stackoverflow.com/questions/3134831/in-c-is-it-still-bad-practice-to-return-a-vector-from-a-function it still bad practice to return a vector from a function Short version It's common to return large objects ”such as vectors.. analysis of the speed of passing returning values . Short answer if you need to return a value then return a value. Don't..
When to use volatile with multi threading? http://stackoverflow.com/questions/4557979/when-to-use-volatile-with-multi-threading concurrency volatile share improve this question Short quick answer volatile is nearly useless for platform agnostic..
How does C++ handle &&? (Short-circuit evaluation) http://stackoverflow.com/questions/5211961/how-does-c-handle-short-circuit-evaluation does C handle Short circuit evaluation When encountering a bool1 bool2 does c ever.. is evaulates to false it doesn't bother evaluating bool2 . Short circuit evaluation is the fancy term that you want to Google..
Why does C++0x's lambda require “mutable” keyword for capture-by-value, by default? http://stackoverflow.com/questions/5501959/why-does-c0xs-lambda-require-mutable-keyword-for-capture-by-value-by-defau mutable&rdquo keyword for capture by value by default Short example #include iostream int main int n n 10 OK mutable n..
Utilizing C++ in iOS and Mac OS X applications http://stackoverflow.com/questions/8759573/utilizing-c-in-ios-and-mac-os-x-applications c objective c ios cocoa share improve this question Short answer yes. For pure C you should take a look at the QT framework..
while (1) Vs. for (;;) Is there a speed difference? http://stackoverflow.com/questions/885908/while-1-vs-for-is-there-a-speed-difference much faster compiled code can be vs. a scripting language. Short version... Is there any reason to prefer a while 1 over a for..
Does a standard implementation of a Circular List exist for C++? http://stackoverflow.com/questions/947489/does-a-standard-implementation-of-a-circular-list-exist-for-c Circular List exist for C I want to use a circular list. Short of implementing my own like this person did what are my options..
Disable CONTROL + ALT + DELETE and Windows(win) Key in Windows 7 using Win32 application http://stackoverflow.com/questions/4529577/disable-control-alt-delete-and-windowswin-key-in-windows-7-using-win32-app BOOL bCtrlKeyDown GetAsyncKeyState VK_CONTROL sizeof SHORT 8 1 if pkh vkCode VK_ESCAPE bCtrlKeyDown Ctrl Esc Alt TAB pkh..
How can adding code to a loop make it faster? http://stackoverflow.com/questions/688325/how-can-adding-code-to-a-loop-make-it-faster if iScaled 0 mov edx DWORD PTR _i 5009 ebp test edx edx jg SHORT L4458 177 pDestination 0 mov BYTE PTR ecx 0 178 else if iScaled.. 0 mov BYTE PTR ecx 0 178 else if iScaled PRECISION3 jmp SHORT L4461 L4458 cmp edx 4096 00001000H jl SHORT L4460 179 pDestination.. PRECISION3 jmp SHORT L4461 L4458 cmp edx 4096 00001000H jl SHORT L4460 179 pDestination 255 mov BYTE PTR ecx 255 000000ffH 180..
Find a function by it signature in Windows DLL http://stackoverflow.com/questions/9644717/find-a-function-by-it-signature-in-windows-dll 749A5E76 00 CMP DWORD PTR DS 765E9A74 0 765DEA1D 74 24 JE SHORT USER32.765DEA43 765DEA1F 64 A1 18000000 MOV EAX DWORD PTR FS.. 765DEA35 85C0 TEST EAX EAX 765DEA37 75 0A JNZ SHORT USER32.765DEA43 765DEA39 C705 A09E5E76 01 MOV DWORD PTR DS 765E9EA0.. 749A5E76 00 CMP DWORD PTR DS 765E9A74 0 765DEA1D 74 24 JE SHORT USER32.765DEA43 765DEA1F 64 A1 18000000 MOV EAX DWORD PTR FS..
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