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

Definition in file px4_macros.h.

Macro Definition Documentation

◆ _CAT

#define _CAT	(	a,
		b
	)	a ## b

Definition at line 84 of file px4_macros.h.

◆ _FILE_NAME_

#define _FILE_NAME_ __FILE__

Definition at line 68 of file px4_macros.h.

◆ _x_CCASSERT_LINE

#define _x_CCASSERT_LINE	(	predicate,
		line
	)	typedef char CAT(constraint_violated_on_line_,line)[2*((predicate)!=0)-1] __attribute__ ((unused)) ;

Definition at line 103 of file px4_macros.h.

◆ arraySize

#define arraySize ( a ) (sizeof((a))/sizeof((a[0])))

Definition at line 61 of file px4_macros.h.

◆ CAT

#define CAT	(	a,
		b
	)	_CAT(a, b)

Definition at line 86 of file px4_macros.h.

◆ CCASSERT

#define CCASSERT ( predicate ) _x_CCASSERT_LINE(predicate, __LINE__)

Definition at line 101 of file px4_macros.h.

◆ DO_PRAGMA

#define DO_PRAGMA ( x ) _Pragma (#x)

Definition at line 109 of file px4_macros.h.

◆ FREEZE_STR

#define FREEZE_STR ( s ) #s

Definition at line 90 of file px4_macros.h.

◆ INVALID_CASE

#define INVALID_CASE ( c ) printf("Invalid Case %d, %s:%d",(c),__BASE_FILE__,__LINE__) /* todo use PANIC */

Definition at line 75 of file px4_macros.h.

◆ STRINGIFY

#define STRINGIFY ( s ) FREEZE_STR(s)

Definition at line 94 of file px4_macros.h.

Referenced by MavlinkReceiver::handle_message_statustext(), and px4_build_uri().

◆ TODO

#define TODO ( x ) DO_PRAGMA(message ("TODO - " #x))

Definition at line 113 of file px4_macros.h.

◆ UNUSED

#define UNUSED ( var ) (void)(var)

Definition at line 79 of file px4_macros.h.

Macros