diff options
Diffstat (limited to 'c++.html.markdown')
| -rw-r--r-- | c++.html.markdown | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/c++.html.markdown b/c++.html.markdown index a59b4db8..a02e7e5b 100644 --- a/c++.html.markdown +++ b/c++.html.markdown @@ -330,7 +330,7 @@ ECarTypes GetPreferredCarType() } // As of C++11 there is an easy way to assign a type to the enum which can be -// useful in serialization of data and converting enums back-and-forth between +// useful in serialization of data and converting enums back-and-forth between // the desired type and their respective constants enum ECarTypes : uint8_t { @@ -352,7 +352,7 @@ void WritePreferredCarTypeToFile(ECarTypes InputCarType) } // On the other hand you may not want enums to be accidentally cast to an integer -// type or to other enums so it is instead possible to create an enum class which +// type or to other enums so it is instead possible to create an enum class which // won't be implicitly converted enum class ECarTypes : uint8_t { @@ -468,7 +468,7 @@ int main() { // Inheritance: // This class inherits everything public and protected from the Dog class -// as well as private but may not directly access private members/methods +// as well as private but may not directly access private members/methods // without a public or protected method for doing so class OwnedDog : public Dog { @@ -825,10 +825,10 @@ fooMap.find(Foo(1)); //true /////////////////////////////////////// // lambdas are a convenient way of defining an anonymous function -// object right at the location where it is invoked or passed as +// object right at the location where it is invoked or passed as // an argument to a function. -// For example, consider sorting a vector of pairs using the second +// For example, consider sorting a vector of pairs using the second // value of the pair vector<pair<int, int> > tester; @@ -856,7 +856,7 @@ sort(tester.begin(), tester.end(), [](const pair<int, int>& lhs, const pair<int, vector<int> dog_ids; // number_of_dogs = 3; for(int i = 0; i < 3; i++) { - dog_ids.push_back(i); + dog_ids.push_back(i); } int weight[3] = {30, 50, 10}; @@ -940,29 +940,13 @@ Foo f1; f1 = f2; -// How to truly clear a container: -class Foo { ... }; -vector<Foo> v; -for (int i = 0; i < 10; ++i) - v.push_back(Foo()); - -// Following line sets size of v to 0, but destructors don't get called -// and resources aren't released! -v.clear(); -v.push_back(Foo()); // New value is copied into the first Foo we inserted - -// Truly destroys all values in v. See section about temporary objects for -// explanation of why this works. -v.swap(vector<Foo>()); - - /////////////////////////////////////// // Tuples (C++11 and above) /////////////////////////////////////// #include<tuple> -// Conceptually, Tuples are similar to old data structures (C-like structs) but instead of having named data members , +// Conceptually, Tuples are similar to old data structures (C-like structs) but instead of having named data members , // its elements are accessed by their order in the tuple. // We start with constructing a tuple. @@ -995,7 +979,7 @@ cout << tuple_size<decltype(third)>::value << "\n"; // prints: 3 // tuple_cat concatenates the elements of all the tuples in the same order. auto concatenated_tuple = tuple_cat(first, second, third); -// concatenated_tuple becomes = (10, 'A', 1e9, 15, 11, 'A' ,3.14141) +// concatenated_tuple becomes = (10, 'A', 1e9, 15, 11, 'A' ,3.14141) cout << get<0>(concatenated_tuple) << "\n"; // prints: 10 cout << get<3>(concatenated_tuple) << "\n"; // prints: 15 |