how the size of an integer is decided?
- is it based on processor or compiler or OS?
Answers were Sorted based on User's Feedback
Answer / lanchai
Different hardware systems might have a different size for
an integer. you might get a different number in different
OS because the hardware running the OSes were different to
begin with. also, the "sizeof" command is actually a
compile-time command calculated by the compiler (see
wikipedia on sizeof)
So strictly speaking, its the hardware (or processor) that
determines the size of an integer.
Is This Answer Correct ? | 11 Yes | 2 No |
Answer / akshay
compiler
if compiler is 16 bit compiler then int is of 2 bytes (turbo c)
if compiler is 32 bit then int is of 4 bytes in VC++
but for 32 bit compiler processor should be compatible i.e. of 32 bytes
so processor also decides it
again of OS
if os is 16 bit how you r going to run a 32 bit compiler on it
so a confusing question
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / sandeep
Its CPU (processor) which decides the size.
Please see the link below-
http://en.wikipedia.org/wiki/Integer_(computer_science)
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / hrishikesh
ans is compiler and not os or machine dependent or
processor b'coz u can port difft os on same processor .
when in tc it is 2
while in gcc it is 4 byte for int .
so her neither u r processor changes nor kernel as all are
originated from
UNIX.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / mangesh
every book says it depends on machine.......some may have
same size for "int" and "long int".......
by machine they mean processor only.......
coz it cant be either compiler or OS......as they are part
of virtual...i mean software...not machine...
Is This Answer Correct ? | 8 Yes | 8 No |
Answer / rakesh
It should be compiler, bcoz turbo c and VC hav different sizes for integer.
of course OS and processor interfere, but only for letting compiler get Installed or not... after which its compilers work.
Is This Answer Correct ? | 2 Yes | 2 No |
what do u mean by Direct access files? then can u explain about Direct Access Files?
What is a program flowchart and how does it help in writing a program?
Why does everyone say not to use gets?
How do I convert a string to all upper or lower case?
write an algorithm to display a square matrix.
how many error occurs in C language ?
explain what are pointers?
#include<stdio.h> void main() { int a=10,b=20,c=30; printf("%d",scanf("%d%d%d",&a,&b,&c)); } what is the output for this?
how to convert an char array to decimal array
Write an algorithm for a program that receives an integer as input and outputs the product of of its digits. E.g. 1234 = 24, 705 = 0
why you will give me a job in TCS.
how to find the given number is prime or not?