count how many months until Oct without using any thing but cout
Count the number of months to October of the following year, modulo 12. cout << (22 – a) % 12;
c++14
How does vector’s growth function work? [closed]
So how is the 10000th element stored here? The element isn’t stored in the vector. It’s ‘stored’ in a piece of memory that is unrelated to the vector. Isn’t the expected behavior here a “Segmentation fault”? No. The behaviour is undefined, so there is no behaviour to expect. But the above runs successfully. That’s a … Read more
what is the concept of evaluation of expression z = (y = 30) + (y = 10) + (y = 20); [closed]
Strictly speaking, the behavior is undefined: 6.5 Expressions … 2 If a side effect on a scalar object is unsequenced relative to either a different side effect on the same scalar object or a value computation using the value of the same scalar object, the behavior is undefined. If there are multiple allowable orderings of the … Read more
why can’t I print the copied string individually? [closed]
Because a is empty, a[i] accesses it out of bounds for every possible i, causing undefined behavior. Use a.push_back(s[i]) to add characters to a.
Why compiler gives the message "call of overloaded function is ambiguous" here in C++11?
You have a member function: void func_A(int a, T initvalue = T()) {} that can be called like this: mc.func_A(1); Then you have an overloaded member function: void func_A(int a) {} that can also be called like this: mc.func_A(1); How could the compiler know which function you intend to call by that line? Answer: It … Read more