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AN3350

Predefined macros

Doc ID 018512 Rev 2

119/185

Remarks

The compiler defines this macro when compiling C++ source code. This macro is undefined

otherwise.

15.3

__CWCC__

Preprocessor macro defined as the version of the compiler frontend.

Syntax

__CWCC__

Remarks

Compilers issued after 2006 define this macro with the compiler’s frontend version. For

example, if the compiler frontend version is 4.2.0, the value of __CWCC__ is 0x4200.

Compilers issued prior to 2006 used the pre-defined macro __MWERKS__. The

__MWERKS__

predefined macro is still functional as an alias for __CWCC__.

The ISO standards do not specify this symbol.

15.4

__DATE__

Preprocessor macro defined as the date of compilation.

Syntax

__DATE__

Remarks

The compiler defines this macro as a character string representation of the date of

compilation. The format of this string is

"Mmm dd yyyy"

where Mmm is the a three-letter abbreviation of the month, dd is the day of the month, and

yyyy is the year.

15.5

__embedded_cplusplus

Defined as 1 when compiling embedded C++ source code, undefined otherwise.

Syntax

__embedded_cplusplus

Remarks

The compiler defines this macro as 1 when the compiler’s settings are configured to restrict

the compiler to translate source code that conforms to the Embedded C++ proposed

standard. The compiler does not define this macro otherwise.

AN3350 데이터시트(PDF) 119 Page - STMicroelectronics