misra 19.10 with array initialiser - c

Question

MISRA 19.10:
In the definition of a function-like macro each instance of a parameter shall be enclosed in parentheses unless it is used as the operand of # or ##.
I have a struct defined like this:
typedef struct
{
SUint_t affValueIndex;
const SFloat_t affLoSaturation;
const SFloat_t affHiSaturation;
const SFloat_t affCoeffTab[SDEF_ANALOG_FLOAT_FILTER_LEN];
SFloat_t affValueTab[SDEF_ANALOG_FLOAT_FILTER_LEN];
} SAnalogFloatFilter_t;
Then I do:
#define DEF_ANALOG_FILTER_COEFF_LIST {0.0287421759f, \
0.1225311874f, \
0.2123775504f, \
0.2726981726f, \
0.2123775504f, \
0.1225311874f, \
0.0287421759f}
#define SMK_ANALOG_FLOAT_FILTER_HANDLE(__name__, __coeff_list__, __hi_sat__, __low_sat__) \
SAnalogFloatFilter_t (__name__)[1] = {{0u, (__low_sat__), (__hi_sat__), __coeff_list__ , {(SFloat_t)0,}}}
static SMK_ANALOG_FLOAT_FILTER_HANDLE(CurrMonFilter,
DEF_ANALOG_FILTER_COEFF_LIST,
(SFloat_t)DEF_ANALOG_FILTER_HI_SAT,
(SFloat_t)DEF_ANALOG_FILTER_LO_SAT);
The problem is that the __ coeff_list __ parameter cannot have a parenthesis as it then expands to ({...}) (an array initialilser), to which the gcc complains:
foo.c:45:9: error: statement-expressions are not allowed outside functions nor in template-argument lists
Is there a clever way to keep the MISRA 19.10 check AND have an array initialiser in the SMK_ANALOG_FLOAT_FILTER_HANDLE macro?

Answer 1

This compiles for me:
typedef int SUint_t;
typedef float SFloat_t;
#define SDEF_ANALOG_FLOAT_FILTER_LEN 8
typedef struct
{
SUint_t affValueIndex;
const SFloat_t affLoSaturation;
const SFloat_t affHiSaturation;
const SFloat_t affCoeffTab[SDEF_ANALOG_FLOAT_FILTER_LEN];
SFloat_t affValueTab[SDEF_ANALOG_FLOAT_FILTER_LEN];
} SAnalogFloatFilter_t;
#define DEF_ANALOG_FILTER_COEFF_LIST (const SFloat_t[SDEF_ANALOG_FLOAT_FILTER_LEN]) \
{0.0287421759f, \
0.1225311874f, \
0.2123775504f, \
0.2726981726f, \
0.2123775504f, \
0.1225311874f, \
0.0287421759f}
#define SMK_ANALOG_FLOAT_FILTER_HANDLE(__name__, __coeff_list__, __hi_sat__, __low_sat__) \
SAnalogFloatFilter_t (__name__)[1] = {{0u, (__low_sat__), (__hi_sat__), (__coeff_list__) , {(SFloat_t)0,}}}
#define DEF_ANALOG_FILTER_HI_SAT 0.0f
#define DEF_ANALOG_FILTER_LO_SAT 0.0f
static SMK_ANALOG_FLOAT_FILTER_HANDLE(CurrMonFilter,
DEF_ANALOG_FILTER_COEFF_LIST,
(SFloat_t)DEF_ANALOG_FILTER_HI_SAT,
(SFloat_t)DEF_ANALOG_FILTER_LO_SAT);
Tested on Ubuntu 12.04.03 LTS with commands:
gcc-4.6 -c -o foo.o foo.c
and
gcc-4.8 -c -o foo.o foo.c