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After p = new Fred[n], how does the compiler know about n objects to be destructed throughout delete[] p?
A: The run-time system hold the number of objects, n, somewhere where it may be retrieved if you know the pointer, p only. There are two famous techniques that do this. Both of these technique are in use trhough commercial-grade compilers, both have tradeoffs, & neither is perfect. These techniques are following:
Over-allocate the array & put n only to the left of the first Fred object. Employ an associative array along with p as the key and n as the value.
A: Use references when you can use, and use pointers when you have to. References are generally preferred over pointers whenever you don't require "reseating". Usually this mean
Implement a multithreaded server that can be used as a proxy server to access some designated file (say it reflects the proxy copy of two file1.txt, file2.txt). Now use a client to
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At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes
A more advanced data type is the structure; here we can define a template as a collection of different variables e.g. struct birthdate { int month; int day;
make a marksheet of 2 student with 5 subject
string S convert it to a palindrome by doing chara, C/C++ Programming
find the minimum total number of shelves
a) Implement a binomial tree class with a method that calculates the value of an option passed in to the class. The binomial tree should not rely on specific features of the differ
How would I make a maze in C++? I would prefer to use the recursion maze generation algorithm if possible, thanks!
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