C Push to Stack

The “push” operation is a fundamental process in stack manipulation, especially when working with data structures in C. It involves adding an element to the top of the stack. In C, this operation is typically carried out by adjusting the stack pointer and copying data into memory locations that are allocated for stack storage. To implement the “push” operation, a function is created to manage these memory changes efficiently.

Here is a breakdown of how the process works:

• Check if there is space available in the stack.
• Increment the stack pointer to prepare for the new element.
• Store the new value at the updated stack pointer location.

Important: The push operation increases the stack size, and if the stack is full, a stack overflow occurs.

Below is an example code illustrating how the push operation is implemented:

void push(int stack[], int *top, int value) {
if (*top < MAX_SIZE - 1) {
*top = *top + 1;
stack[*top] = value;
} else {
printf("Stack overflow!n");
}
}

In this example, the function pushes a value to the stack by incrementing the top pointer and storing the value at the new position.