NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c-part1/9616

Internet Message Format | 1996-08-05 | 1.5 KB

Path: mail2news.demon.co.uk!genesis.demon.co.uk
From: Lawrence Kirby <[e-mail]>
Newsgroups: comp.lang.c
Subject: Re: confusion between putchar and printf
Date: Tue, 12 Mar 96 01:06:28 GMT
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In article <[e-mail]> [e-mail] "Kurt J Lanza" writes:

>># define A "hello world!"

>What did the compiler say? Something about invalid type, I
>wouls suspect. You have defined A as a character pointer.

A (or rather the "hello world!" which is substitued for A) has type
"array of 13 char". It is not a char *, for example sizeof(A) is 13 and
is unlikely to equal sizeof(char *) on any reasonable platform.

>>       c =  A;                 (1)

Here A is in a context where a value is required (the right hand operand of
= ). When you take the value of an array you get a pointer to its first
element so it is true that this is attempting to assign a value with type
char * to c. However A itself is not a char * and particularly not in the
context of its definition.

>(1) You can't assign a character pointer to an integer.

That is indeed the problem.

--
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Lawrence Kirby | [e-mail]
Wilts, England | [e-mail]
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