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Element is not a member..... [Solved]

 
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JAM2014



Joined: 24 Apr 2014
Posts: 138

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Element is not a member..... [Solved]
PostPosted: Tue Jun 05, 2018 11:50 am     Reply with quote
Hi All,

I've been using a GPS NMEA parsing routine from the code library for a while now, and it works well. The parsing routines did not return the Checksum, so I wanted to add that, but after doing so I'm encountering an error "element is not a member...."

Here is the Structure in question:
Code:

///////////////////////////////////////////////////////////////////////////////
typedef struct _DateTimeInfo
{
   int8 Day;
   int8 Month;
   int8 Year;
   int8 Hour;
   int8 Minute;
   int8 Second;
} DateTimeInfo;
////////////////////////////////////////
typedef struct _GPRMCInfo
{
   char Valid;
   DateTimeInfo DT;
   float Latitude;
   char N_S;
   float Longitude;
   char E_W;
   float Speed;
   int8 Checksum; <<< This was added!!!!
} GPRMCInfo;


I'm trying to access the checksum with this code:

Code:

fprintf(Diag, "Rcvd. Checksum: %02u\n\r", MyGPRMCInfo.Checksum);


This original structure arrangement has been working fine, but now won't compile after I added the 'int8 Checksum', and it's not obvious to me where the problem is!

Thanks,

Jack
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Jun 05, 2018 12:53 pm     Reply with quote
The following test program compiles with zero errors or warnings with
compiler vs. 5.078:
Code:
#include <18F46K22.h>
#fuses INTRC_IO, NOWDT, BROWNOUT, PUT, NOPBADEN
#use delay(clock=4M)
#use rs232(baud=9600, UART1, ERRORS, stream=diag)

typedef struct _DateTimeInfo
{
   int8 Day;
   int8 Month;
   int8 Year;
   int8 Hour;
   int8 Minute;
   int8 Second;
} DateTimeInfo;


typedef struct _GPRMCInfo
{
   char Valid;
   DateTimeInfo DT;
   float Latitude;
   char N_S;
   float Longitude;
   char E_W;
   float Speed;
   int8 Checksum;   // <<< This was added!!!!
} GPRMCInfo;


// Create an instance of the structure.
GPRMCInfo MyGPRMCInfo;

//======================================
void main()
{     

fprintf(diag, "Rcvd. Checksum: %02u\n\r", MyGPRMCInfo.Checksum);

while(TRUE);
}
JAM2014



Joined: 24 Apr 2014
Posts: 138

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PostPosted: Tue Jun 05, 2018 1:26 pm     Reply with quote
Hi All,

Yeah, that worked for me too, so I did some more digging.... Turns out I made the stupid mistake of loading the Include file that contains the Structure from a different working directory, and then trying to compile with the unmodified version of the file in the actual working directory!

Argh!!

Thanks for your input as it helped me to realize the issue was not 'code related', but 'programmer related' instead.......

Jack
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