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IAR Embedded Workbench for RISC-V 3.40

Reserved identifiers

In this section:

Some identifiers are reserved for use by the implementation. Some of the more important identifiers that the C/C++ standards reserve for any use are:

  • Identifiers that contain a double underscore (__)

  • Identifiers that begin with an underscore followed by an uppercase letter

In addition to this, the IAR tools reserve for any use:

  • Identifiers that contain a double dollar sign ($$)

  • Identifiers that contain a question mark (?)

More specific reservations are in effect in particular circumstances, see the C/C++ standards for more information.