which is faster ? p++; or p=p+1;

p++ is faster because on compilation it gets translated to three machine
instructions where as p=p+1 needs four machine instructions. All machine
instructions take the same time.

For p++ the instructions are:

mov ax

inc ax

mov

ax

For p p+ 1 the instructions would be

mov ax

mov bx 1

add bx

mov

ax

This is why p++ is faster than p+1!

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