What does "expected '=', ',', ';', 'asm' or 'attribute' before 'char'" mean? AVR

Question

// Sting for the Name
extern const PROGMEM char name[];

//Data structure of the Heap

typedef struct
{
  AllocStrategies strategy;
  uint16_t size;
  MemAddr start;
  MemDriver* driver;
  const PROGMEM char name[];
}Heap;

expected '=', ',', ';', 'asm' or '__ attribute__' before 'char'

Why do i get this error message twice?

"*expected bla before 'char'*" means that you placed something different then "*bla before 'char'*". So you want to check what's "*before 'char'*" and how it differs from "*bla*". — alk, Nov 25 '17 at 11:30
it means that you need to code everything in asm from now on :) — Jean-François Fabre, Nov 25 '17 at 11:40
more seriously the compiler is lost at this point. This is probably because `PROGMEM` isn't defined — Jean-François Fabre, Nov 25 '17 at 11:41
Have a look at this: [PROGMEM](https://www.arduino.cc/reference/en/language/variables/utilities/progmem/). As already said: The definition of `PROGMEM` is missing - probably because you didn't `#include` something necessary. — Scheff's Cat, Nov 25 '17 at 12:09

tofro · Accepted Answer · 2017-11-26T18:33:00.030

4

You forgot to include a file:

#include <avr/pgmspace.h>

The PROGMEM attribute that allows you to allocate a const variable in program space is defined there.

You are getting this error message twice because you are using PROGMEM twice.

edited Nov 26 '17 at 18:33

answered Nov 25 '17 at 17:09

tofro

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What does "expected '=', ',', ';', 'asm' or '__attribute__' before 'char'" mean? AVR

1 Answers1

What does "expected '=', ',', ';', 'asm' or 'attribute' before 'char'" mean? AVR