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Can assign a pointer to a value on declaration? Something like this:
int * p = &(1000)
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You need to initialize a pointer by assigning it a valid address. This is normally done via the address-of operator (&). The address-of operator (&) operates on a variable, and returns the address of the variable. For example, if number is an int variable, &number returns the address of the variable number.
Pointer Initialization is the process of assigning the address of a variable to a pointer. In C language, the address operator & is used to determine the address of a variable.
Initialization of C Pointer variablePointer Initialization is the process of assigning address of a variable to a pointer variable. Pointer variable can only contain address of a variable of the same data type. In C language address operator & is used to determine the address of a variable.
All pointers, when they are created, should be initialized to some value, even if it is only zero. A pointer whose value is zero is called a null pointer. Practice safe programming: Initialize your pointers!
Yes, you can initialize pointers to a value on declaration, however you can't do:
int *p = &(1000);
& is the address of operator and you can't apply that to a constant (although if you could, that would be interesting). Try using another variable:
int foo = 1000;
int *p = &foo;
or type-casting:
int *p = (int *)(1000); // or reinterpret_cast<>/static_cast<>/etc
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