Datasheet

ARM Compiler Reference
ARM DUI 0067D Copyright © 1999-2001 ARM Limited. All rights reserved. 3-31
3.4 Predefined macros
Table 3-4 lists the macro names predefined by the ARM C and C++ compilers. Where
the value field is empty, the symbol is only defined.
Table 3-4 Predefined macros
Name Value When defined
__arm – If using armcc, tcc, armcpp, or tcpp.
__ARMCC_VERSION ver For giving the version number of the compiler. The
value is the same for the ARM and Thumb compilers.
It is a decimal number, whose value can be relied on
to increase between releases. The format is PVtbbb
where:P is the product (1 for ADS)V is the minor
version (2 for 1.2)t is the patch release (0 for 1.2) bbb
is the build (750 for example). The example given
results in 120750.
__APCS_INTERWORK – If -apcs /interwork in use or the cpu architecture is
v5TE.
__APCS_ROPI – If -apcs /ropi in use.
__APCS_RWPI – If -apcs /rwpi in use.
__APCS_SWST – If -apcs /swst in use.
__BIG_ENDIAN – If compiling for a big-endian target.
__cplusplus – In C++ compiler mode.
__CC_ARM – Returns compiler name.
__DATE__ date When date of translation of source file is required.
__embedded_cplusplus – If in EC++ compiler mode.
__FEATURE_SIGNED_CHAR –Set by -zc (used by CHAR_MIN and CHAR_MAX ).
__FILE__ name The presumed full pathname of the current source file.
__func__ name The name of the current function.
__LINE__ num When line number of the current source file is
required.
__MODULE__ mod Contains the filename part of the value of __FILE__ .
__OPTIMISE_SPACE – If -Ospace in use.