GDB

GDB Tutorial: Some Cool Tips to Debug C/C++ Code

C++

Introduction to C++11 and C++14 with Example Code Snippet

4 Lamba Expressions of Lambda Functions

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[firstPart](secondPart) TypeYouReturn{BodyOfLambda}(actualParameters);

lambda function:

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double dUpperPart=[]{double dX, double dY}double{return dX*dX+dY*dY;}

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vector<int> iVector;
for_each(begin(iVector),end(iVector),[](int n){
  if(n%2==0) cout << n << endl;
});

5 Static Assertion

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static_assert(evaluateExpression, stringMessage);

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static_assert(sizeof(long long int)>=16;"This is unexpected");

7 move and &&

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MovableClass(MovableClass&&);
MOvableClass&& operator=(MovableClass&&);

8 Few Notes about Pointers

unique_ptr: If something has ownership it could not be shared, but it is movable.

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unique_ptr<someType> suniquePtr(new someType(args));
...
uniquePtr.release();

shared_ptr<someType> somePtr(new someType(args));

weak_ptr<someType> weakPtr=somePtr;

9 Uniform Initialization and Initializer Lists

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//old styles of initialization with constructor
CSomeClass SomeObject(argumnet1, argument2);
//the above can be changed to
CSomeClass SomeObject={argument1,argument2};

//obsolete
vector<int> ourVector;
for(int i=0;i<5;ourVector.push_back(i++));
//better
vector<int> ourVector={0,1,2,3,4};

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class CChild: public CParment
{
  public:
  using CParent::CParent
}