c++ Programming Glossary: wrap
Calling Objective-C method from C++ method? http://stackoverflow.com/questions/1061005/calling-objective-c-method-from-c-method self.layer which I cannot do in C syntax. I could wrap this Objective C call to the same Objective C class which in.. you want to keep them separate you can set up a standard C wrapper function that gives the Objective C object a usable C style.. MyObjectDoSomethingWith objectiveCObject aParameter The wrapper function does not need to be in the same .m file as the Objective..
Convert string to int with bool/fail in C++ http://stackoverflow.com/questions/1243428/convert-string-to-int-with-bool-fail-in-c const std string s T t try code reuse you could wrap boost lexical_cast up like this as well t lexical_cast T s return..
Why doesn't C++ have a garbage collector? http://stackoverflow.com/questions/147130/why-doesnt-c-have-a-garbage-collector can be easily implemented with smart pointers objects that wrap pointers with a reference count which auto delete themselves..
Do-While and if-else statements in C/C++ macros http://stackoverflow.com/questions/154136/do-while-and-if-else-statements-in-c-c-macros In many C C macros I'm seeing the code of the macro wrapped in what seems like a meaningless do while loop. Here are.. statement where the bodies of the if statement were not wrapped in curly brackets you'd get a bad surprise. if corge BAR.. is no longer associated with the if. It doesn't help to wrap things in curly braces within the macro because the following..
Developing C wrapper API for Object-Oriented C++ code http://stackoverflow.com/questions/2045774/developing-c-wrapper-api-for-object-oriented-c-code C wrapper API for Object Oriented C code I'm looking to develop a.. C code I'm looking to develop a set of C APIs that will wrap around our existing C APIs to access our core logic written.. or best practices that introduce the concepts involved in wrapping C around object oriented C c c wrapper share improve..
Output unicode strings in Windows console app http://stackoverflow.com/questions/2492077/output-unicode-strings-in-windows-console-app endl EDIT I could not find any other solution than to wrap this snippet around in a stream. Hope somebody has better ideas...
Why should I not wrap every block in “try”-“catch”? http://stackoverflow.com/questions/2737328/why-should-i-not-wrap-every-block-in-try-catch should I not wrap every block in &ldquo try&rdquo &ldquo catch&rdquo I have always.. a meaningful try block. I just posted ' You should ALWAYS wrap calls that can throw in try catch blocks. ' to this question..
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++? http://stackoverflow.com/questions/3457967/what-belongs-in-an-educational-tool-to-demonstrate-the-unwarranted-assumptions-p assumptions in C C and their platforms. Examples integers wrap around everyone has ASCII I can store a function pointer in.. long sizeof void EXPECT 06 integers are 2 complement and wrap around int_max 1 int_min EXPECT 07 integers are 2 complement.. 1 int_min EXPECT 07 integers are 2 complement and always wrap around INT_MAX 1 INT_MIN EXPECT 08 overshifting is okay 1 bits_per_int..
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 Fence Memory Also known as no mans land. This is used to wrap the allocated memory surrounding it with a fence and is used..
Combining C++ and C - how does #ifdef __cplusplus work? http://stackoverflow.com/questions/3789340/combining-c-and-c-how-does-ifdef-cplusplus-work about how the C and C interact. I understand that by wrapping the C code with extern C the C compiler will not mangle.. steps into B.h __cplusplus will be defined so it will wrap the code with extern C and __cplusplus will not be defined inside.. __cplusplus will not be defined and the code will not be wrapped in extern C . Is this correct Is there anything wrong with..
Pointer to local variable http://stackoverflow.com/questions/4570366/pointer-to-local-variable alternative I missed probably even the best one here is to wrap your array into a struct and thus make it a value type. Then..
C++ Returning reference to local variable http://stackoverflow.com/questions/4643713/c-returning-reference-to-local-variable still exists delete p get rid of it Typically you would wrap the pointer in some RAII class and or a factory function so..
Is there a difference between foo(void) and foo() in C++ or C http://stackoverflow.com/questions/51032/is-there-a-difference-between-foovoid-and-foo-in-c-or-c to the headers to make them truly cross language namely wrap them in an extern C if we're compiling C . share improve this..
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible with the lifetime of a variable. It is commonly used to wrap resources into another object. std string is a perfect example...
Why does integer overflow on x86 with GCC cause an infinite loop? http://stackoverflow.com/questions/7682477/why-does-integer-overflow-on-x86-with-gcc-cause-an-infinite-loop integer arithmetic using x86 integer instructions which wrap on overflow. Therefore I would have expected it to wrap on overflow.. wrap on overflow. Therefore I would have expected it to wrap on overflow despite the fact that it is undefined behavior... usr lib x86_64 linux gnu gcc x86_64 linux gnu 4.5.2 lto wrapper Target x86_64 linux gnu Configured with .. ... Thread model..
How does std::forward work? [duplicate] http://stackoverflow.com/questions/8526598/how-does-stdforward-work I know what it does and when to use it but I still can't wrap my head around how it works. Please be as detailed as possible..
C++ Vector of Pointers to Objects http://stackoverflow.com/questions/1361139/c-vector-of-pointers-to-objects Regardless never explicitly free things in your code . Wrap things up to make sure resource management is dealt with automatically...
Guidelines to do constexpr operator-overloading? http://stackoverflow.com/questions/17744842/guidelines-to-do-constexpr-operator-overloading do constexpr operator overloading Consider a simple int Wrapper class with overloaded multiplication operator and operator.. ambiguity. My current approach is #include iostream struct Wrap int value Wrap operator Wrap const rhs value rhs.value return.. approach is #include iostream struct Wrap int value Wrap operator Wrap const rhs value rhs.value return this need to..
calling c++ code from c http://stackoverflow.com/questions/2399344/calling-c-code-from-c to Foo ideally in the form of a void pointer for opacity . Wrap the DECLARATIONS for the C API you've exported in extern C ...
How do you import an enum into a different namespace in C++? http://stackoverflow.com/questions/3293279/how-do-you-import-an-enum-into-a-different-namespace-in-c typedef language lawyer share improve this question Wrap the existing namespace in a nested namespace which you then..
How to add code at the entry of every function? http://stackoverflow.com/questions/5081123/how-to-add-code-at-the-entry-of-every-function calls e.g. #include iostream template void f void struct Wrap void operator const std cout Pre call hook std endl f namespace.. void test_func std cout Real function std endl const Wrap test_func wrapped_test_func int main wrapped_test_func return.. too #include iostream template class C void C F class WrapMem C inst public WrapMem C inst inst inst void operator std..
Clean, efficient algorithm for wrapping integers in C++ http://stackoverflow.com/questions/707370/clean-efficient-algorithm-for-wrapping-integers-in-c Returns a number between kLowerBound and kUpperBound e.g. Wrap 1 0 4 Returns 4 e.g. Wrap 5 0 4 Returns 0 int Wrap int const.. kLowerBound and kUpperBound e.g. Wrap 1 0 4 Returns 4 e.g. Wrap 5 0 4 Returns 0 int Wrap int const kX int const kLowerBound.. e.g. Wrap 1 0 4 Returns 4 e.g. Wrap 5 0 4 Returns 0 int Wrap int const kX int const kLowerBound int const kUpperBound Suggest..
Function hooking in C++? http://stackoverflow.com/questions/7743771/function-hooking-in-c Print a log message before and or after the function body. Wrap the function body in a try catch body. Measure duration of a..
Check at Compile-Time if Template Argument is void http://stackoverflow.com/questions/9625526/check-at-compile-time-if-template-argument-is-void function template typename TRet typename... TArgs TRet Wrap TRet WINAPI api TArgs... TArgs... args TRet ret api args..... int main int ret someFunc 5 true works normally int ret2 Wrap someFunc 5 true same as above but I'll get a message if there's.. this into the template function it looks as follows void Wrap void WINAPI api void ret api ahem Can't declare a variable of..
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