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c++ Programming Glossary: yetIs gcc4.7 buggy about regular expressions? [duplicate] http://stackoverflow.com/questions/12530406/is-gcc4-7-buggy-about-regular-expressions and are now almost fully implemented but regex hasn't been yet so it has stayed in the same unfinished state since it was added...
What 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 that that symbol was defined somewhere but it doesn't yet care where. The linking phase is responsible for finding the..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol the directive #ifndef A_H . Since the macro A_H has not yet been defined it will keep processing the following text. The.. the directive #ifndef B_H . Since the macro B_H has not yet been defined it will keep processing the following text. The..
Variable length arrays in C++? http://stackoverflow.com/questions/1887097/variable-length-arrays-in-c to specify types depending on runtime values this does not yet exist in current C except for new operator type specifiers but..
Reading from text file until EOF repeats last line http://stackoverflow.com/questions/21647/reading-from-text-file-until-eof-repeats-last-line haven't reached EOF because the EOF mark hasn't been read yet binarically speaking its conceptual location is just after the..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new more than you need even though you don't want to use it yet. Devex gives a good example Standard C also supports placement..
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 me a lot. I think that is a POSIX standard not sure yet looking for clarification and official chapter and verse. This..
Can I use a binary literal in C or C++? http://stackoverflow.com/questions/2611764/can-i-use-a-binary-literal-in-c-or-c either a std string version of itoa or the more concise yet marginally less efficient std bitset . Thank you Roger for the..
http://stackoverflow.com/questions/2979209/using-fflushstdin reveals numerous websites warning against using it. And yet that's exactly how my CS professor taught the class to do it...
Finding C++ static initialization order problems http://stackoverflow.com/questions/335369/finding-c-static-initialization-order-problems you are trying to get rid of but just have not had time yet you are going to get rid of them eventually arn't you class..
What are all the common undefined behaviour that a C++ programmer should know about? [closed] http://stackoverflow.com/questions/367633/what-are-all-the-common-undefined-behaviour-that-a-c-programmer-should-know-ab or deleted objects Dereferencing a pointer that has not yet been definitely initialized Performing pointer arithmetic that..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new Memory allocated by LocalAlloc with LMEM_FIXED but not yet written to. 0xFEEEFEEE OS fill heap memory which was marked..
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special a jump via goto from a point where some variable was not yet in scope to a point where it is already in scope. This restriction..
In which scenario do I use a particular STL Container? http://stackoverflow.com/questions/471432/in-which-scenario-do-i-use-a-particular-stl-container I'm close to memorizing all of them... But what I do not yet grasp is in which scenario each of them is used. Could a kind..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c its first data member have the same value the same address yet they are completely distinct types. If you are unfamiliar with.. elements indexed from 0 to n 1 there is no element n . And yet to support half open ranges where the beginning is inclusive..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong stream while inStream.eof int data yay not end of stream yet now read ... inStream data oh crap now we read the end and only..
Dealing with accuracy problems in floating-point numbers http://stackoverflow.com/questions/590822/dealing-with-accuracy-problems-in-floating-point-numbers of the columns calculation is 1.9999999999999996 so near yet so far from the desired result of 2.0. Any suggestions most..
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 the same problem as with typename . What if we can't know yet whether the name is a template when parsing the code We will..
STL maps with user-defined objects http://stackoverflow.com/questions/1102392/stl-maps-with-user-defined-objects for that. If that's the case you can use the above trick. Yet another way to achieve the same is to specialize std less namespace..
Pass an array to a wrapped function as pointer+size or range http://stackoverflow.com/questions/11584599/pass-an-array-to-a-wrapped-function-as-pointersize-or-range of not making excessive copies and being more reusable. Yet another alternative approach to wrapping would be to write a..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol same definition is included in different translation unit. Yet when merging the object code generated from the compilation..
How could pairing new[] with delete possibly lead to memory leak only? http://stackoverflow.com/questions/1913343/how-could-pairing-new-with-delete-possibly-lead-to-memory-leak-only inside HeapFree which I suspect refers to heap corruption. Yet every here and there one can read false statements that using.. in leaking resources allocated by the subsequent elements. Yet because I do free size bytes not sizeof T bytes no heap corruption..
Garbage Collection in C++ — why? http://stackoverflow.com/questions/228620/garbage-collection-in-c-why and compatible with the current idioms of C GC would be a Yet Another Good Tool for C . C is a multiparadigm language Adding..
Does the size of an int depend on the compiler and/or processor? http://stackoverflow.com/questions/2331751/does-the-size-of-an-int-depend-on-the-compiler-and-or-processor minimum requirements specified in the language standard. Yet in reality C and C are intended to be efficient . That immediately..
Initializing an object to all zeroes http://stackoverflow.com/questions/2837854/initializing-an-object-to-all-zeroes zero something out in the middle of C89 90 or C the code. Yet I'd say that the proper way to do is still without memset but..
c++ stack trace from unhandled exception? http://stackoverflow.com/questions/3355683/c-stack-trace-from-unhandled-exception is called since at that point the stack has been unwound. Yet if I simply allow the program to abort it will produce a core..
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 the cost is only that it is big enough to be worth fixing. Yet another way to look at it is called the Rule Of Succession ...
What is the curiously recurring template pattern (CRTP)? http://stackoverflow.com/questions/4173254/what-is-the-curiously-recurring-template-pattern-crtp in ctors decrement in dtors . Try to do it as an excercise Yet another useful example for boost I am not sure how they have..
Returning unique_ptr from functions http://stackoverflow.com/questions/4316727/returning-unique-ptr-from-functions copy construction instead it supports move semantics. Yet I can return a unique_ptr T from a function and assign the returned..
http://stackoverflow.com/questions/4340396/does-the-c-standard-mandate-poor-performance-for-iostreams-or-am-i-just-deali library iostreams I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent..
Use of typename keyword with template function parameters http://stackoverflow.com/questions/4347730/use-of-typename-keyword-with-template-function-parameters to a type since a function parameter can't be a value. Yet the compiler doesn't accept this. It wants const typename T..
Double-Checked Lock Singleton in C++11 http://stackoverflow.com/questions/6086912/double-checked-lock-singleton-in-c11 memory of the constructor happen before the relaxed store Yet is the use of fence equivalent to have the store with memory_order_release..
How do promotion rules work when the signedness on either side of a binary operator differ? http://stackoverflow.com/questions/6770258/how-do-promotion-rules-work-when-the-signedness-on-either-side-of-a-binary-opera case it must be choosing int because I get a result of 1 . Yet I don't see in the general case how this is decidable. Is this..
How does delete[] know it's an array? (C++) http://stackoverflow.com/questions/703691/how-does-delete-know-its-an-array-c it doesn't even know whether arr was dynamically created. Yet if I do the following instead int main int num new int 2 deleteForMe..
http://stackoverflow.com/questions/7908248/in-a-templated-derived-class-why-do-i-need-to-qualify-base-class-member-names-w can be late bound even if it isn't a called function name. Yet another solution is template typename T class Derived public..
cout or printf which of the two has a faster execution speed C++? http://stackoverflow.com/questions/896654/cout-or-printf-which-of-the-two-has-a-faster-execution-speed-c it lacks the minor complications of object orientedness . Yet given that we're dealing with I O operations here even a minor..
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