SLAU132V User guide | 德州仪器 TI.com.cn

SLAU132V October 2004 – February 2020

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2.5.1 Predefined Macro Names

The compiler maintains and recognizes the predefined macro names listed in Table 2-31.

Table 2-31 Predefined MSP430 Macro Names

Macro Name	Description
__DATE__⁽¹⁾	Expands to the compilation date in the form mmm dd yyyy
__FILE__⁽¹⁾	Expands to the current source filename
__LARGE_CODE_MODEL__	Defined if --code_model=large is specified
__LARGE_DATA_MODEL__	Defined if --data_model=large or −−data_model=restricted is specified
__LINE__⁽¹⁾	Expands to the current line number
__LONG_PTRDIFF_T__	Defined when --data_model=large is specified. Indicates ptrdiff_t is a long.
__MSP430__	Always defined
__MSP430X__	Defined if --silicon_version=mspx is specified
__MSP430X461X__	Defined if --silicon_version=mspx is specified
__PTRDIFF_T_TYPE__	Set to the type of ptrdiff_t. Determined by the --data_model option.
__signed_chars__	Defined if char types are signed by default (--plain_char=signed)
__SIZE_T_TYPE__	Set to the type of size_t. Determined by the --data_model option.
__STDC__⁽¹⁾	Defined to 1 to indicate that compiler conforms to ISO C Standard. See Section 5.1 for exceptions to ISO C conformance.
__STDC_VERSION__	C standard macro.
__STDC_HOSTED__	C standard macro. Always defined to 1.
__STDC_NO_THREADS__	C standard macro. Always defined to 1.
__TI_COMPILER_VERSION__	Defined to a 7-9 digit integer, depending on if X has 1, 2, or 3 digits. The number does not contain a decimal. For example, version 3.2.1 is represented as 3002001. The leading zeros are dropped to prevent the number being interpreted as an octal.
__TI_EABI__	Defined to 1 if the EABI is enabled (see Section 2.13); otherwise, it is undefined.
__TI_GNU_ATTRIBUTE_SUPPORT__	Defined to 1 if GCC extensions are enabled (which is the default)
__TI_STRICT_ANSI_MODE__	Defined to 1 if strict ANSI/ISO mode is enabled (the --strict_ansi option is used); otherwise, it is defined as 0.
__TI_STRICT_FP_MODE__	Defined to 1 if --fp_mode=strict is used (default); otherwise, it is defined as 0.
__TIME__⁽¹⁾	Expands to the compilation time in the form "hh:mm:ss"
__unsigned_chars__	Defined if char types are unsigned by default (default or −− plain_char=unsigned)
__UNSIGNED_LONG_SIZE_T__	Defined when --data_model=large is specified. Indicates size_t is an unsigned long.
_INLINE	Expands to 1 if optimization is used (--opt_level or -O option); undefined otherwise.

(1) Specified by the ISO standard

You can use the names listed in Table 2-31 in the same manner as any other defined name. For example,

printf ( "%s %s" , __TIME__ , __DATE__);

translates to a line such as:

printf ("%s %s" , "13:58:17", "Jan 14 1997");