C++

C++ TutorialBasic input/output in c++C++ AlignmentC++ Argument Dependent Name LookupC++ Arithmitic MetaprogrammingC++ ArraysC++ Atomic TypesC++ AttributesC++ autoC++ Basic Type KeywordsC++ Bit fieldsC++ Bit ManipulationC++ Bit OperatorsC++ Build SystemsC++ C incompatibilitiesC++ C++11 Memory ModelC++ Callable ObjectsC++ Classes/StructuresC++ Client server examplesC++ Common compile/linker errors (GCC)C++ Compiling and BuildingC++ Concurrency with OpenMPC++ Const CorrectnessC++ const keywordC++ Constant class member functionsC++ constexprC++ ContainersC++ Copy ElisionC++ Copying vs AssignmentC++ Curiously Recurring Template Pattern (CRTP)C++ Date and time using chrono headerC++ Debugging and Debug-prevention Tools & TechniquesC++ decltypeC++ Digit separatorsC++ EnumerationC++ ExceptionsC++ Explicit type conversionsC++ Expression templatesC++ File I/OC++ Floating Point ArithmeticC++ Flow ControlC++ Fold ExpressionsC++ Friend keywordC++ function call by value vs. call by referenceC++ Function OverloadingC++ Function Template OverloadingC++ Futures and PromisesC++ Header FilesC++ Implementation-defined behaviorC++ Inline functionsC++ Inline variablesC++ IterationC++ IteratorsC++ KeywordsC++ LambdasC++ Layout of object typesC++ Linkage specificationsC++ LiteralsC++ LoopsC++ Memory managementC++ MetaprogrammingC++ Move SemanticsC++ mutable keywordC++ MutexesC++ NamespacesC++ Non-Static Member FunctionsC++ One Definition Rule (ODR)C++ Operator OverloadingC++ operator precedenceC++ OptimizationC++ Overload resolutionC++ Parameter packsC++ Perfect ForwardingC++ Pimpl IdiomC++ PointersC++ Pointers to membersC++ PolymorphismC++ PreprocessorC++ ProfilingC++ RAII: Resource Acquisition Is InitializationC++ Random number generationC++ Recursive MutexC++ Refactoring TechniquesC++ ReferencesC++ Regular expressionsC++ Resource ManagementC++ Return Type CovarianceC++ Returning several values from a functionC++ RTTI: Run-Time Type InformationC++ Scopes



C++ C incompatibilities

From WikiOD

This describes what C code will break in a C++ compiler.

Reserved Keywords[edit | edit source]

The first example are keywords that have a special purpose in C++: the following is legal in C, but not C++.

int class = 5

These errors are easy to fix: just rename the variable.

Weakly typed pointers[edit | edit source]

In C, pointers can be cast to a void*, which needs an explicit cast in C++. The following is illegal in C++, but legal in C:

void* ptr;
int* intptr = ptr;

Adding an explicit cast makes this work, but can cause further issues.

goto or switch[edit | edit source]

In C++, you may not skip initializations with goto or switch. The following is valid in C, but not C++:

goto foo;
int skipped = 1;
foo;

These bugs may require redesign.

Credit:Stack_Overflow_Documentation