IAR Embedded Workbench for Arm 9.70.xIAR C/C++ DevelopmentThe preprocessorDescription of predefined preprocessor symbols__ARM_FEATURE_DIRECTED_ROUNDING__ARM_FEATURE_DIRECTED_ROUNDINGIn this section: DescriptionThis symbol is defined to 1 if the directed rounding and conversion instructions are supported.This symbol is defined according to ACLE (Arm C Language Extensions).