Re: [cc65] Repeated string in struct array

I am looking for the following:
 
struct room {
    char* name;
    char* location;
} room[2] = {
    {"Hallway1", "Home"},
    {"Hallway2", "Home"}
};
 
I want to use a pointer in room[1].location to room[0].location instead of using the default mechanism to concatenate strings.  I might want to use Hidden64 to put some strings in hidden RAM later.

From: Ullrich von Bassewitz <uz@musoftware.de>
To: cc65@musoftware.de
Sent: Saturday, July 9, 2011 8:07 PM
Subject: Re: [cc65] Repeated string in struct array


On Fri, Jul 08, 2011 at 10:41:49AM -0700, Joseph Rose wrote:
>    Let's say I am defining an array of a struct type.  The struct has a char*
>    field.  The field in subscript 3 is the same as the one in subscript 2.  I
>    want to shorten #3 to an offset to #2's data.  How do I do that?

I don't know exactly what you mean. When using string literals, the compiler
will usually merge even partial strings. So in the example

        struct {
            const char* s;
        } bar[] = {
            { "hello world" },
            { "world" },
        };
        
there is only one string "hello world" and the second char pointer points into
the same storage.

Regards


        Uz


-- 
Ullrich von Bassewitz                                  uz@musoftware.de
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