I have the following code (in main.c) to initialise a typedef
struct that is in a header file (phOsal.h).
main.c
#include <phOsal.h>
...
phOsal_RPi_DataParams_t osal;
...
phOsal.h
/**
* \brief RPi osal parameter stucture
*/
typedef struct
{
uint16_t wId; /**< ID of this component, do not modify */
/* Other stuff */
uint8_t * bLEDPins;
uint8_t bLEDCount;
uint8_t * bDIPSWPins;
uint8_t bDIPSWCount;
uint8_t bCommDev_ResetPin;
} phOsal_RPi_DataParams_t;
when I compile this using the cmake commands cmake ./Source
and make
I get a compile error.
error: unknown type name 'phOsal_RPi_DataParams_t'
If I comment it out the program compiles fine. Also in main.c
there are other DataParams
that are declared and used but do not throw the compiler error.
I have read a number of questions on here and none of them seem to be what is wrong and have tried the following.
#ifndef
and #define
are correct struct dataparams {...};
and then called it in main.c
using struct dataparams osal;
Any help would be much appreciated.
An option would be to declare your struct as:
typedef struct phOsal_RPi_DataParams_t { ... }phOsal_RPi_DataParams_t;
Look here when your aliasing a struct with typedef at the declaration example:
http://en.wikipedia.org/wiki/Struct_(C_programming_language)#typedef
if you want to you the "dataparams" alias then do the following:
typedef struct phOsal_RPi_DataParams_t
{
...
} dataparams;
Then in main.c ditch the struct and just declar it as:
dataparams osal;
The ordering of where you declare it and your main may be wrong as the commenters suggested, and yes the include should be in "" keep that. Here's a good model to follow:
Unknown type name with typedef struct in C
Edited because of comments.
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