IAR Embedded Workbench for Arm 9.70.xIAR C/C++ DevelopmentThe preprocessorDescription of predefined preprocessor symbols__RWPI____RWPI__In this section: DescriptionAn integer that is defined when the compiler option ‑‑rwpi is used.This preprocessor symbol is equivalent to the ACLE (Arm C Language Extensions) macro __ARM_RWPI.See also‑‑rwpi.