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preprocessor macros


#define MBED_CONCAT(a, b)   MBED_CONCAT_(a, b)
 MBED_CONCAT Concatenate tokens together. More...
 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

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

MBED_CONCAT Concatenate tokens together.

Expands tokens before concatenation
1 // Creates a unique label based on the line number

Definition at line 39 of file mbed_preprocessor.h.

#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.

Token limit is 16
1 // Get number of arguments
2 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.


MBED_STRINGIFY Converts tokens into strings.

Expands tokens before stringification
1 // Creates a string based on the parameters
2 const char *c = MBED_STRINGIFY(This is a ridiculous way to create a string)

Definition at line 53 of file mbed_preprocessor.h.

#define MBED_STRLEN (   a)    MBED_STRLEN_(a)

MBED_STRLEN Reports string token length.

Expands tokens before calculating length
1 // Get string length
2 const int len = MBED_STRLEN("Get the length")

Definition at line 67 of file mbed_preprocessor.h.

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