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Forum: ARM programming with GCC/GNU tools declairing volatile struct in include file


declairing volatile struct in include file
von Dustin S. (dbrazeau)

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Im trying to:

volatile struct  sDeviceReg
{
  .
  .
  .
};

and I'm getting the error:
error: qualifiers can only be specified for objects and functions

Am I doing this wrong??

Thanks

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Re: declairing volatile struct in include file
von Clifford S. (clifford)

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The error means just what it says, you cab have a volatile variable or
function but not a volatile data type.

struct  sDeviceReg
{
...
};

volatile struct sDeviceReg device_instance ;


or

volatile struct  sDeviceReg
{
...
} device_instance ;


Note that in both cases it is device_instance that is volatile not
sDeviceReg. If you create other instances of this structure, they will
only be volatile if you declare them so individually.

Clifford

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