Why it is not possible to create pointer to unsingned int?

geek Jack

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• Aug 2nd, 2010

Try this, it is working...  in C#include<stdio.h>main(){unsigned int *p;int m=7;p=&m;printf("%d",*p);}

kbjarnason

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• Jul 1st, 2010

Unsigned int *ptr;Voila; a pointer to unsigned int.  What language was being discussed which supposedly prevents this?  Certainly not C.

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Write a program in C that does nothing not even takes memory?

kbjarnason

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• Jul 1st, 2010

I suspect it is impossible to write a C program which "takes no memory", unless one rewrites the startup code for the implementation.For example, argv[0] is the "program name", whi...

mohit_verma

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• Sep 11th, 2009

A program that does nothing is as:void main(void)  {;}

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1. #define MAX 1002. main()3. {4. int max=100;5. int a[MAX];6. int b[max];7. }

jbode

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• Jul 6th, 2010

Line 6 defines a variable-length array, which is only valid for C99 or later.  The size of a VLA is not known until runtime, they may not declared static or extern, and only ordinary identifiers ...

kbjarnason

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• Jul 1st, 2010

In C99, the differences are that b is defined, rather than a, and that b is a variable-length-array rather than a conventional array.In C90, the sixth line is an error, as C90 does not support VLAs.

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