preprocessor macros

Macros
#define	MBED_CONCAT(a, b)   MBED_CONCAT_(a, b)
	MBED_CONCAT Concatenate tokens together. More...
#define	MBED_STRINGIFY(a)   MBED_STRINGIFY_(a)
	MBED_STRINGIFY Converts tokens into strings. More...
#define	MBED_STRLEN(a)   MBED_STRLEN_(a)
	MBED_STRLEN Reports string token length. More...
#define	MBED_COUNT_VA_ARGS(...)   GET_NTH_ARG_(__VA_ARGS__, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
	MBED_COUNT_VA_ARGS(...) Reports number of tokens passed. More...

Detailed Description

Macro Definition Documentation

MBED_CONCAT

#define MBED_CONCAT	(		a,
			b
	)		MBED_CONCAT_(a, b)

MBED_CONCAT Concatenate tokens together.

Note

Expands tokens before concatenation

// Creates a unique label based on the line number
int MBED_CONCAT(UNIQUE_LABEL_, __LINE__) = 1;

Definition at line 39 of file mbed_preprocessor.h.

MBED_STRINGIFY

#define MBED_STRINGIFY

(

a

)

MBED_STRINGIFY_(a)

MBED_STRINGIFY Converts tokens into strings.

Note

Expands tokens before stringification

// Creates a string based on the parameters
const char *c = MBED_STRINGIFY(This is a ridiculous way to create a string)

Definition at line 53 of file mbed_preprocessor.h.

MBED_STRLEN

#define MBED_STRLEN

(

a

)

MBED_STRLEN_(a)

MBED_STRLEN Reports string token length.

Note

Expands tokens before calculating length

// Get string length
const int len = MBED_STRLEN("Get the length")

Definition at line 67 of file mbed_preprocessor.h.

MBED_COUNT_VA_ARGS

#define MBED_COUNT_VA_ARGS

(

...

)

GET_NTH_ARG_(__VA_ARGS__, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)

MBED_COUNT_VA_ARGS(...) Reports number of tokens passed.

Note

Token limit is 16

// Get number of arguments
const int count = MBED_COUNT_VA_ARGS("Address 0x%x, Data[0] = %d Data[1] = %d", 0x20001234, 10, 20)

Definition at line 81 of file mbed_preprocessor.h.