When I compile the code snipets below I'm producing the error: storage
size of 'frm' isn't known.
dll.h :
/*
* File: dll.cpp
* Defines the data link layer's interface.
*/
#ifndef __FRAME_
#define __FRAME_
typedef unsigned int frame_kind;
typedef unsigned int seq_nr;
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
#endif
dataLinkSend() :
void dataLinkSend(int sd, char* data, seq_nr last) {
struct frame frm;
frm.kind = data;
frm.seq = (last++)%3;
frm.ack = last;
frm.data = data;
if(send(sd, frm, sizeof(frm), 0) < 0) {
fprintf(stderr, "Couldn't send frm\n");
exit(1);
}
}
If you need the whole file that dataLinkSend() id in, let me know and I
can post it. 5 28845 wa****@gmail.com said:
<snip>
>
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
Shift the tag:
struct frame {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
};
--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999 http://www.cpax.org.uk
email: rjh at above domain (but drop the www, obviously) wa****@gmail.com schrieb:
When I compile the code snipets below I'm producing the error: storage
size of 'frm' isn't known.
Please provide a compiling minimal example inserted in your
message by copy and paste. Otherwise, important information
or the error itself may be missing or people may spot errors
that were not there in the original version.
>
<snip>
typedef unsigned int frame_kind;
typedef unsigned int seq_nr;
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
This must not compile.
You mean:
struct frame {
....
};
<snip>
>
dataLinkSend() :
void dataLinkSend(int sd, char* data, seq_nr last) {
struct frame frm;
As you did not really create the type "struct frame" above,
this type is not known, and so is its size...
<snip>
Cheers
Michael
--
E-Mail: Mine is an /at/ gmx /dot/ de address.
I got it working now. Thanks everyone.
Tim
Michael Mair wrote:
wa****@gmail.com schrieb:
When I compile the code snipets below I'm producing the error: storage
size of 'frm' isn't known.
Please provide a compiling minimal example inserted in your
message by copy and paste. Otherwise, important information
or the error itself may be missing or people may spot errors
that were not there in the original version.
<snip>
typedef unsigned int frame_kind;
typedef unsigned int seq_nr;
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
This must not compile.
You mean:
struct frame {
....
};
<snip>
dataLinkSend() :
void dataLinkSend(int sd, char* data, seq_nr last) {
struct frame frm;
As you did not really create the type "struct frame" above,
this type is not known, and so is its size...
<snip>
Cheers
Michael
--
E-Mail: Mine is an /at/ gmx /dot/ de address.
wa****@gmail.com wrote:
When I compile the code snipets below I'm producing the error: storage
size of 'frm' isn't known.
dll.h :
/*
* File: dll.cpp
* Defines the data link layer's interface.
*/
#ifndef __FRAME_
#define __FRAME_
typedef unsigned int frame_kind;
typedef unsigned int seq_nr;
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
#endif
dataLinkSend() :
void dataLinkSend(int sd, char* data, seq_nr last) {
struct frame frm;
frm.kind = data;
frm.seq = (last++)%3;
frm.ack = last;
frm.data = data;
if(send(sd, frm, sizeof(frm), 0) < 0) {
fprintf(stderr, "Couldn't send frm\n");
exit(1);
}
}
If you need the whole file that dataLinkSend() id in, let me know and I
can post it.
I suppose it could be more complex than this but..
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
^
...kills it for me. Should be..
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
} frame;
^
--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---
Joe Wright wrote:
wa****@gmail.com wrote:
>When I compile the code snipets below I'm producing the error: storage size of 'frm' isn't known.
dll.h : /* * File: dll.cpp * Defines the data link layer's interface. */
#ifndef __FRAME_ #define __FRAME_
typedef unsigned int frame_kind; typedef unsigned int seq_nr;
struct { frame_kind kind; seq_nr seq; seq_nr ack; char data[100]; }; frame
#endif
dataLinkSend() : void dataLinkSend(int sd, char* data, seq_nr last) { struct frame frm;
frm.kind = data; frm.seq = (last++)%3; frm.ack = last; frm.data = data;
if(send(sd, frm, sizeof(frm), 0) < 0) { fprintf(stderr, "Couldn't send frm\n"); exit(1); } }
If you need the whole file that dataLinkSend() id in, let me know and I can post it.
I suppose it could be more complex than this but..
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
}; frame
^
..kills it for me. Should be..
struct {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
} frame;
^
This was a mistake. I need more rest. Should be..
struct frame {
frame_kind kind;
seq_nr seq;
seq_nr ack;
char data[100];
};
I'll go lie down now. See y'all later.
--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein --- This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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