-D


This option defines preprocessor macros.

[Specification format]

-D[]name[=def][,name[=def]]...

 

-

Interpretation when omitted

None

[Detailed description]

-

This option defines name as a preprocessor macro.

-

This is equivalent to adding "#define name def" at the beginning of the source file.

-

This option can be used to redefine C language macros that have been defined already: __STDC__, __LINE__, __FILE__, __DATE__, __TIME__, __RENESAS_VERSION__, __RL78__, __CCRL__, __CCRL, __RENESAS__ (except for -D __RL78__[=1], -D __CCRL__[=1], -D __CCRL[=1] and -D __RENESAS__[=1]).
If any of these macros is redefined, a warning will be output.

-

An error will occur if name is omitted.

-

If "=def" is omitted, def is regarded as 1.

-

This option can be specified more than once.

-

If both this option and -U option are specified for the same preprocessor macro, the option specified last will be valid.

[Example of use]

-

To define "sample=256" as a preprocessor macro, describe as:

>ccrl -D sample=256 -cpu=S2 -dev=dr5f100pj.dvf main.c