Atmel CAVR-4 Manual De Usuario

CAVR-4

Predefined symbols

Reference Guide

_ _IAR_SYSTEMS_ICC_ _

This predefined symbol expands to a number that identifies the IAR compiler platform. 
The current identifier is 6. Note that the number could be higher in a future version of 
the product.

This symbol can be tested with 

#ifdef

 to detect whether the code was compiled by a 

compiler from IAR Systems.

_ _ICCAVR_ _

This predefined symbol expands to the number 1 when the code is compiled with the 
AVR IAR C/C++ Compiler.

_ _LINE_ _

This predefined symbol expands to the current line number of the file currently being 
compiled.

_ _MEMORY_MODEL_ _

Use this symbol to identify the used memory model.

This symbol expands to a value reflecting the selected memory model according to the 
following table:

NDEBUG

This preprocessor symbol determines whether any assert code you have written in your 
application shall be included or not in the built application.

If the symbol is:

●

defined, the assert code will not be included

●

not defined, the assert code will be included

This means that if you have written any assert code and build your application, you 
should define this symbol to exclude the assert code from the application.

Note that the assert macro is defined in the 

assert.h

 standard include file.

In IAR Embedded Workbench, the 

NDEBUG

 symbol is automatically defined if you build 

your application in the Release build configuration.

1

Tiny

2

Small

3

Large