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1. malloc() returns a NULL if it fails to allocate the requested memory.
(A): False
(B): True
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QA->In C language ----- is used to allocate a block of memory.....
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MCQ->malloc() returns a NULL if it fails to allocate the requested memory.....
MCQ->Which of the following statement is correct about the program given below? #include<iostream.h> #include<string.h> #include<malloc.h> class BixString { char txtName[20]; public: BixString(char txtTemp = NULL) { if(txtTemp != NULL) strcpy(txtName, txtTemp); } void Display(void) { cout<<txtName; } }; int main() { char txtName = (char)malloc(10); strcpy(txtName, "IndiaBIX"); txtName = 48; BixString objTemp(txtName); cout<< sizeof(txtName); return 0; }....
MCQ->Which two statements are true about comparing two instances of the same class, given that the equals() and hashCode() methods have been properly overridden? If the equals() method returns true, the hashCode() comparison == must return true. If the equals() method returns false, the hashCode() comparison != must return true. If the hashCode() comparison == returns true, the equals() method must return true. If the hashCode() comparison == returns true, the equals() method might return true.....
MCQ->malloc() returns a float pointer if memory is allocated for storing float's and a double pointer if memory is allocated for storing double's.....
MCQ->Point out the correct statement which correctly free the memory pointed to by 's' and 'p' in the following program? #include<stdio.h> #include<stdlib.h> int main() { struct ex { int i; float j; char s }; struct ex p; p = (struct ex )malloc(sizeof(struct ex)); p->s = (char)malloc(20); return 0; }....
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