Subj : Re: sscanf and bool
To   : borland.public.cpp.borlandcpp
From : Jogy
Date : Tue Aug 24 2004 11:18 am

MarvinAvery wrote:
> Hi.
> 
> I am using BC5.02 under Win2K.
> 
> I have a character string that contains some boolean values: eg. "0010"
> I want to read these values via the sscanf() function: eg.
>     bool  b1, b2, b3, b4;
>     sscanf (line, "%1d%1d%1d%1d", &b1, &b2, &b3, &b4);
> 
> Problem is "%1d" stores the value as int -- that is as 16 bits whereas the
> storage location is only 8 bits. So I am getting a buffer overflow.
> 
> Is there any conversion format that will read and store an 8-bit integer?
> Any other suggestions?
> 
> TIA
> 

Hello,

I think %c is the printf/scanf format for 8-bit variable.

But I am not sure if the current C++ standard specifies that
the size of bool is 8-bit .....

It may be safer to scanf into integer variables and then
convert them to bool.


Jogy

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