px4_macros.h File Reference

A set of useful macros for enhanced runtime and compile time error detection and warning suppression. More...

#include <assert.h>

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Macros
#define	arraySize(a)   (sizeof((a))/sizeof((a[0])))
#define	_FILE_NAME_   __FILE__
#define	INVALID_CASE(c)   printf("Invalid Case %d, %s:%d",(c),__BASE_FILE__,__LINE__) /* todo use PANIC */
#define	UNUSED(var)   (void)(var)
#define	_CAT(a, b)   a ## b
#define	CAT(a, b)   _CAT(a, b)
#define	FREEZE_STR(s)   #s
#define	STRINGIFY(s)   FREEZE_STR(s)
#define	CCASSERT(predicate)   _x_CCASSERT_LINE(predicate, __LINE__)
#define	_x_CCASSERT_LINE(predicate, line)   typedef char CAT(constraint_violated_on_line_,line)[2*((predicate)!=0)-1] __attribute__ ((unused)) ;
#define	DO_PRAGMA(x)   _Pragma (#x)
#define	TODO(x)   DO_PRAGMA(message ("TODO - " #x))

Detailed Description

A set of useful macros for enhanced runtime and compile time error detection and warning suppression.

Define NO_BLOAT to reduce bloat from file name inclusion.

The arraySize() will compute the size of an array regardless it's type

INVALID_CASE(c) should be used is case statements to ferret out unintended behavior

UNUSED(var) will suppress compile time warnings of unused variables

CCASSERT(predicate) Will generate a compile time error it the predicate is false