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c++ Programming Glossary: numberWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array So how would you strategically guess to minimize the number of times that the train must back up and go down the other path..
Best way to detect integer overflow in C/C++ http://stackoverflow.com/questions/199333/best-way-to-detect-integer-overflow-in-c-c highestOneBitPosition a return a_bits b 32 Substitute the number of bits for your target integer of course. I'm not sure of the.. way to determine the position of the highest one bit in a number here's a brute force method size_t highestOneBitPosition uint32_t.. perfect but that'll give you a good idea whether any two numbers could overflow before you do the operation. I don't know whether..
When should static_cast, dynamic_cast and reinterpret_cast be used? http://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-and-reinterpret-cast-be-used type you will get the exact same value. There are a number of conversions that reinterpret_cast cannot do too. It's used..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux by the fraction of samples containing it regardless of the number of times it may occur within a sample. Another objection I often.. is to say that it's a Beta distribution with average value number of hits 1 number of tries 2 2 1 2 2 75 . The key is that we.. a Beta distribution with average value number of hits 1 number of tries 2 2 1 2 2 75 . The key is that we see I more than once...
http://stackoverflow.com/questions/4421706/operator-overloading Other than this it can be overloaded to take any number of additional arguments including zero. Throughout the C standard..
How do you set, clear and toggle a single bit in C/C++? http://stackoverflow.com/questions/47981/how-do-you-set-clear-and-toggle-a-single-bit-in-c-c Setting a bit Use the bitwise OR operator to set a bit. number 1 x That will set bit x . Clearing a bit Use the bitwise AND.. a bit Use the bitwise AND operator to clear a bit. number ~ 1 x That will clear bit x . You must invert the bit string.. a bit The XOR operator ^ can be used to toggle a bit. number ^ 1 x That will toggle bit x . Checking a bit You didn't ask..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c 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 type of..
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 a memory address A memory address is in basic terms just a number. If you think of memory as a big array of bytes the very first.. can typically ask the programming language to give you its number but most programming languages and runtimes tries to hide the.. and runtimes tries to hide the fact that there is a number beneath just because the number itself does not really hold..
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 answers and links below A pointer can be re assigned any number of times while a reference can not be reassigned after initialization...
http://stackoverflow.com/questions/589575/size-of-int-long-etc that and the value of the CHAR_BIT macro that defines the number of bits in a byte in all but the most obscure platforms it's.. as the expression sizeof type CHAR_BIT evaluates to the number of bits enough to contain required ranges and the ordering of..
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 and you can't check out until everyone with a room number higher than you has checked out. So let's think about the stack... the hotel when you do you just checked out of the highest numbered occupied room. If no one else checks in after you and you..
http://stackoverflow.com/questions/1744665/need-help-with-getline user for input and I do int number string str int accountNumber cout Enter number cin number cout Enter name getline cin str.. name getline cin str cout Enter account number cin accountNumber Why after inputting the first number it outputs Enter Name followed.. outputs Enter Name followed immediately by Enter Account Number before I even get to input my str for the getline cin str line..
http://stackoverflow.com/questions/2901694/programatically-detect-number-of-physical-processors-cores-or-if-hyper-threading 0x3f 1 EAX 31 26 1 else if cpuVendor AuthenticAMD Get NC Number of CPU cores 1 cpuID 0x80000008 regs cores unsigned regs 2 0xff..
how to get vendor id and product id of a plugged usb device on windows http://stackoverflow.com/questions/2935184/how-to-get-vendor-id-and-product-id-of-a-plugged-usb-device-on-windows sizeof Interface_Info BYTE Buf 1024 DWORD i DWORD InterfaceNumber 0 PSP_DEVICE_INTERFACE_DETAIL_DATA pspdidd PSP_DEVICE_INTERFACE_DETAIL_DATA.. Insert error handling here. break qDebug TEXT Device Number i is s n i buffer if buffer LocalFree buffer if GetLastError.. Insert error handling here. qDebug return false InterfaceNumber 0 this just returns the first one you can iterate on this if..
Passing Variable Number of Arguments with different type - C++ http://stackoverflow.com/questions/3555583/passing-variable-number-of-arguments-with-different-type-c Variable Number of Arguments with different type C I am coding in C and have..
overloading of the operator++() http://stackoverflow.com/questions/3846296/overloading-of-the-operator share improve this question Should look like this class Number public Number operator prefix Do work on this. return this.. this question Should look like this class Number public Number operator prefix Do work on this. return this You want to make.. to do this is to implement postfix in terms of prefix. Number operator int postfix Number result this make a copy for result..
what is the purpose and return type of the __builtin_offsetof operator? http://stackoverflow.com/questions/400116/what-is-the-purpose-and-return-type-of-the-builtin-offsetof-operator in Symbian in C In addition what does it return Pointer Number of bytes c symbian share improve this question It's a builtin..
Split an Integer into its digits c++ http://stackoverflow.com/questions/4207696/split-an-integer-into-its-digits-c s cout Please enter an integer cin number cout Orginal Number number endl make the number positive if number 0 number number.. s cout Please enter an integer cin number cout Orginal Number number endl make the number positive if number 0 number number.. char argv int num getInput Enter a number cout Original Number num endl stack int digits int sum 0 while num 0 digits.push..
error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup http://stackoverflow.com/questions/4845410/error-lnk2019-unresolved-external-symbol-main-referenced-in-function-tmainc 0 Iterate void sequence advance current_index Number of items in the sequence sequence size_type sequence size const..
Printing prime numbers from 1 through 100 http://stackoverflow.com/questions/5200879/printing-prime-numbers-from-1-through-100 prime number. For each number from 2 to 100 find Remainder Number n where n ranges from 2 to sqrt number . If n is greater than..
How do I expand a tuple into variadic template function's arguments? http://stackoverflow.com/questions/687490/how-do-i-expand-a-tuple-into-variadic-template-functions-arguments function is called with the correct parameters @tparam N Number of tuple arguments to unroll @ingroup g_util_tuple template.. function is called with the correct parameters @tparam N Number of tuple arguments to unroll @ingroup g_util_tuple template..
Create Random Number Sequence with No Repeats http://stackoverflow.com/questions/693880/create-random-number-sequence-with-no-repeats Random Number Sequence with No Repeats Duplicate Unique random numbers in..
C++ Fatal Error LNK1120: 1 unresolved externals http://stackoverflow.com/questions/7410798/c-fatal-error-lnk1120-1-unresolved-externals aTotal bTotal cTotal total int numSold cout Enter The Number of Class A Tickets Sold cin numSold aTotal numSold A cout Enter.. A Tickets Sold cin numSold aTotal numSold A cout Enter The Number of Class B Tickets Sold cin numSold bTotal numSold B cout Enter.. B Tickets Sold cin numSold bTotal numSold B cout Enter The Number of Class C Tickets Sold cin numSold cTotal numSold C total aTotal..
implementing merge sort in C++ http://stackoverflow.com/questions/12030683/implementing-merge-sort-in-c endl cout endl cout endl endl cout Please Enter THE NUMBER OF ELEMENTS you want to sort THEN PRESS ENTER endl cin num cout..
error LNK1169: one or more multiply defined symbols found http://stackoverflow.com/questions/12132453/error-lnk1169-one-or-more-multiply-defined-symbols-found ABS protected string name string id long account ACCOUNT NUMBER private static const int discount 10 STATIC DISCOUNT OF 10 FOR..
Initialize global array of function pointers at either compile-time, or run-time before main() http://stackoverflow.com/questions/4152018/initialize-global-array-of-function-pointers-at-either-compile-time-or-run-time files are created func1.o func2.o func3.o ... funcN.o. NUMBER is defined using g DNUMBER N #include module.h #define CONCAT2.. func2.o func3.o ... funcN.o. NUMBER is defined using g DNUMBER N #include module.h #define CONCAT2 x y x ## y #define CONCAT.. ## y #define CONCAT x y CONCAT2 x y int16_t CONCAT myfunc_ NUMBER ... When compiled using g DNUMBER N after preprocessing becomes..
High Resolution Timing Part of Your Code http://stackoverflow.com/questions/700392/high-resolution-timing-part-of-your-code testing loop. #include iostream #include ctime #define NUMBER 10000 the number of operations get the difference between start.. clock1 clock2 double diffms diffticks CLOCKS_PER_SEC NUMBER return diffms int main start a timer here clock_t begin clock.. your functions several times at least 10'000 for int i 0 i NUMBER i a very fast function in the middle func stop timer here..
What is the best way to indicate that a double value has not been initialized? http://stackoverflow.com/questions/7893531/what-is-the-best-way-to-indicate-that-a-double-value-has-not-been-initialized
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