C on x86 question

Question

On the x86 architecture is a long int 32 or 64 bits long??? Or do I have to use long long int for 64 bit arithmetic?

Answer 1

~swim~, thanks for the info

Answer 2

Hi Everybody, I have been investigating integer sizes on my Macbook Pro dual core x86 laptop and here are the resaults.
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int main( int argc, char *argv[])
{
printf("\nSize of the defferent basic data types in bytes\n");
printf("Size of char in bytes is: %u\n", sizeof(char));
printf("Size of short in bytes is: %u\n", sizeof(short));
printf("Size of int in bytes is: %u\n", sizeof(int));
printf("Size of long in bytes is: %u\n", sizeof(long));
printf("Size of long long in bytes is: %u\n", sizeof(long long));
printf("Size of float in bytes is: %u\n", sizeof(float));
printf("Size of double in bytes is: %u\n", sizeof(double));
return( 0 );
}

//sizeofprinter.c

[RicksMacBookPro:~/src/C folder] rrs% /Users/rrs/src/C\ folder/sizeofprinter

Size of the defferent basic data types in bytes
Size of char in bytes is: 1
Size of short in bytes is: 2
Size of int in bytes is: 4
Size of long in bytes is: 8
Size of long long in bytes is: 8
Size of float in bytes is: 4
Size of double in bytes is: 8
[RicksMacBookPro:~/src/C folder] rrs%
------------------------------------------------
printf("Size of long long in bytes is: %u\n", sizeof(long long)); causes
complier errors on sololearn. I guess windows machines don't like the long long int type.