Routine declaration syntax error (Or: Where's wlado?)

Technical Programming
1

:confused: Here’s a stumper:


char Autonomous_1 (char State) // <---Right Here!
{
//...
}

The error is a syntax error. It is the only error in the listing, and it is at that line. I have removed 1 or 2 routines, and still get it.

2

That looks OK on cursory examination. What comes right before that line? Is it possible you have unmatched braces?

3

a lot of times, it will give you a syntax error and the real error will be 10 lines up from the little green arrow.

4 
#include "printf_lib.h"


/*******************************************************************************
* FUNCTION NAME: PrintRamString
* PURPOSE:       Run 1 loop for autonomous mode 1
* CALLED FROM:   anywhere
* ARGUMENTS:     
*     Input: char State - What is the state of atuonomous
* RETURNS:       char - is it finished?
*******************************************************************************/
5

The only thing above it is comments and #includes

6

Have you modified printf_lib.h?

7

Some. Mostly just a #endif at the end.

8

I added

/**************************************************  *****************************
* FUNCTION NAME: PrintRamString
* PURPOSE:       Run 1 loop for autonomous mode 1
* CALLED FROM:   anywhere
* ARGUMENTS:     
*     Input: char State - What is the state of atuonomous
* RETURNS:       char - is it finished?
**************************************************  *****************************/

char Autonomous_1 (char State) // <---Right Here!
{
//...
}

right after a #include of our stock printf_lib.h. No error. How about if you post your printf_lib.h?

9 
/*******************************************************************************
* FILE NAME: printf_lib.h
*
* DESCRIPTION: 
*  This is the include file which corresponds to printf_lib.c
*
* USAGE:
*  If you add your own routines to that file, this is a good place
*  to add function prototypes.
*******************************************************************************/
#ifndef __printf_lib_h_
#define __printf_lib_h_

int printf(rom const char *format, ...);

void printid(int data,int crtOn);
void printb(unsigned char data,int crtOn);
void printd(unsigned char data,int crtOn);
void printix(int data,int crtOn);
void printx(unsigned char data,int crtOn);
void debug_print(char *bufr,int data);
void debug_printb(char *bufr,unsigned int data);
void debug_println(char *bufr);

#endif

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/

Commenting out the last few declares don’t help.

10

Well, you might be right. I’m still stumped. You didn’t do something weird like #defining char, Autonomous_1 or State, did you? (Or parentheses or underscores, taking a lesson from those obfuscated C samples posted elsewhere?)

11

I’m stumped too… :slight_smile:

12

Since you have an #ifdef/#endif protecting your printf_lib.h from being included multiple times, I suspect the problem is being caused by the line(s) before that #include. Post a bit more context, and look at the other included files for unmatched parentheses or braces or even missing semicolons.

13

After 3 of us working on 4 computers last night to get it to compile, we got it to compile. There were various similar problems throughout the new stuff. I have to ask: Is there a limit on the number af function prototypes in a file?

14

Possible. How many did you have?

15

Is there some reason why you can’t use the stock printf lib if it works? If you can’t, try remodifying it one change at a time to see what it is.

16

The stock printf has many limitations to it. There have been several threads about this and several substitutes have been offered. :slight_smile: