newbie simple strings question

[Frank]

I got tired of typing CFSTR so I thought I would just pass a char string
and convert it to a CFString. The Mac OS X Programming book is very light
on explanation of strings (need book recommendations).

Why doesn't this work?

int tryText(char *psTxt)
{
CFMutableStringRef sTxt;
CFStringAppendCString( sTxt, psTxt, CFStringGetSystemEncoding() );
return 0;
}

Program received signal: "EXC_BAD_ACCESS".

TIA!

[Doug Brown]

In article <no-3009031947230001@eli-216-190-254-129.ev1.net>,
[email]no@spam.com[/email] (Frank) wrote:

> int tryText(char *psTxt)
> {
> CFMutableStringRef sTxt;

sTxt = CFStringCreateMutable(kCFAllocatorDefault, 0);

> CFStringAppendCString( sTxt, psTxt, CFStringGetSystemEncoding() );
> return 0;
> }
>
> Program received signal: "EXC_BAD_ACCESS".

You haven't actually created a mutable string yet, you only defined a
space in memory for one. Add what I added above, and it should work fine
(I think! I haven't used CF much). You can replace 0 with a max length
for the string if you want.

Doug

--
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