With C++11, you can call the member function shrink_to_fit(). The draft standard section 23.2.6.2 says: shrink_to_fit is a non-binding request to reduce capacity() to size(). [Note: The request is non-binding to allow latitude for implementation-specific optimizations. —end note]
Actually, what is called is the implicitly defined operator = for Derived. The definition provided by the compiler in turn calls operator = for the Base and you see the corresponding output. The same is with the constructor and destructor. When you leave it to the compiler to define operator =, it defines it as … Read more
There is a huge difference between the two ways. const bool isReady() The code above will return a const bool, but it does not guarantee that the object will not change its logic state. bool isReady() const This will return a bool, and it guarantees that the logic state of your object will not change. … Read more
value a a a b b b c c c index 0 1 2 3 4 5 6 7 8 bound l u Where l represents the lower bound of b, and u represents the upper bound of b. So if there are range of values that are “equal” with respect to the comparison being … Read more
My solution was : Open the project properties Into General –> SDK Version I just picked the 10.0.15063.0 version instead of 8.1 And it worked.
It’s actually the statement after the one you mark as causing the program to crash that causes the program to crash! You must pass the same pointer to delete[] as you get back from new[]. Otherwise the behaviour of the program is undefined.
My guess is that it is a problem with the compiler options you are using, the compiler itself, or the file system. I just now compiled both versions (with optimizations on) and ran them against a 92,000 line text file: c++ version: 113 ms c version: 179 ms And I suspect that the reason that … Read more
If you want to selectively hide functions from B it does not make much sense to use public inheritance in the first place. Use private inheritance & selectively bring methods from B into the scope of A: struct B{ void method1(){}; void method2(){}; }; struct A : private B{ using B::method1; }; A a; a.method1(); … Read more
D and Go will probably just become as popular as Python and Ruby are today. They each fill a niche, and even though D was supposed to be a full-fledged replacement of C++, it probably will never acquire enough mass to push C++ away. Not to mention that they both aren’t stable/mature enough, and it’s … Read more
In C, it’s common to define macros that do some stuff getting the verbatim argument, and at the same time define functions to be able to get the address of it transparently. // could evaluate at compile time if __builtin_sin gets // special treatment by the compiler #define sin(x) __builtin_sin(x) // parentheses avoid substitution by … Read more