vector::size_type in C++
size_type is a (static) member type of the type vector<int>. Usually, it is a typedef for std::size_t, which itself is usually a typedef for unsigned int or unsigned long long.
vector
vector
Converting a vector to string
Maybe std::ostream_iterator and std::ostringstream:
Vector of structs initialization
Create vector, push_back element, then modify it as so: You cant access a vector with [#] until an element exists in the vector at that index. This example populates the [#] and then modifies it afterward.
C++ error: Undefined symbols for architecture x86_64
Your compiler error is coming from the fact that your signature for the forward declaration of _num_steps does not match the signature of your definition of _num_steps. the type of steps_list does not match Change your prototype line to:
C# equivalent of C++ vector, with contiguous memory?
You could use a List<T> and when T is a value type it will be allocated in contiguous memory which would not be the case if T is a reference type. Example:
‘vector’ in namespace ‘std’ does not have a template type
So, I have a definition in my header file: And it keeps giving me this error when I try to compile the program: Any clue why it’s giving me this? Edit: File.h
Displaying a vector of strings in C++
I’m sorry if this is a repeat question but I already tried to search for an answer and came up empty handed. So basically I just want to add strings (single words) to the back of a vector and then display the stored strings as a single string. I am quite the rookie. Why doesn’t … Read more
Vector is not a Template?
vector is from the std namespace, so you must use std:: to specify: Or you can use a using statement:
Debug assertion failed. C++ vector subscript out of range
Regardless of how do you index the pushbacks your vector contains 10 elements indexed from 0 (0, 1, …, 9). So in your second loop v[j] is invalid, when j is 10. This will fix the error: In general it’s better to think about indexes as 0 based, so I suggest you change also your first loop to this: Also, to access the elements of a … Read more
C++ – No matching member function for call to ‘push_back’
vertex_puller is a std::make_unique<VertexPuller> function. It’s not a unique_ptr<VertexPuller>. You have to call the function and pass any parameters you would pass to a VertexPuller constructor.