Type of expression sizeof(x)

[Douglas W O'neal]

In article <256 at servio.UUCP> penneyj at servio.UUCP (D. Jason Penney) writes:
> [ example deleted ]
>It seems that the sizeof() is promoting the expression to be
>unsigned.  By the way, changing 3 to 3L does NOT make the problem disappear.
> [...]
>Our conversation with DEC re this bug was extremely unhelpful.  They claim that
>the return type of a sizeof() expression is system-dependent.

Quoting from _The C Programming language_, 2nd edition, page 135:
"Strictly, sizeof produces an unsigned integer value whose type, size_t,
is defined in the header <stddef.h>."

>From this statement, I do not think that in is unreasonable for DEC
to make sizeof of type unsigned since they are required for ANSI C
to return a unsigned int.

-- 
Doug O'Neal                  doug at jhuvms.hcf.jhu.edu
Homewood Academic Computing  doug at jhuvms.bitnet
Johns Hopkins University     mimsy!aplcen!jhunix!doug