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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.
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Write a C program to compute the factorial of 5 i.e. 1x2x3x4x5 etc Write a C program to calculate the output Y for a given value of X for the following formula. Y=X 2
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A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t
C Program for REVERSE THE WORD IN STRING #include conio.h> #include stdio.h> #include string.h> void main() { char a[50],b[25][25],temp; i
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