C pointer query

[ashuosh]

I don't pointer and array arithmetic can any body will help me in all the details of pointer and array arithmetic along with examples programs.

Q1: Multiplication of pointer and unsigned integer is allowed how and why?
Q2: address of float can be assigned to a char pointer?

 

[ruchi chouhan]

ans2.


You can indeed treat every object as an array of characters. However, you have to cast the pointer explicitly:

float f = 1.5f;

char const * p = (char const *)&f;

for (size_t i = 0; i != sizeof(float); ++i)
{
printf("The byte at position %zu has value %d.\n", i, (int)p);
}