Atmel CAVR-4 Manual De Usuario

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CAVR-4
Part 1. Using the compiler
The DLIB runtime environment
75
Assert
If you have linked your application with support for runtime debugging, C-SPY will be 
notified about failed asserts. If this is not the behavior you require, you must add the 
source file 
xReportAssert.c
 to your application project. Alternatively, you can 
rebuild the library. The 
_ _ReportAssert
 function generates the assert notification.You 
can find template code in the 
avr\src
 directory. For further information, see Building 
and using a customized library, page 62. To turn off assertions, you must define the 
symbol 
NDEBUG
.
In the IAR Embedded Workbench, this symbol 
NDEBUG
 is by default defined in a 
Release project and not defined in a Debug project. If you build from the command line, 
you must explicitly define the symbol according to your needs.
Heaps
The runtime environment supports heaps in the following memory types:
See The heap, page 44 for information about how to set the size for each heap. To use a 
specific heap, the prefix in the table is the extended keyword to use in front of 
malloc
free
calloc
, and 
realloc
. The default functions will use one of the specific heap 
variants, depending on project settings such as memory model. For information about 
how to use a specific heap in C++, see New and Delete operators, page 114.
Memory type
Segment name
Extended keyword
Used by default in 
memory model
Tiny
TINY_HEAP
_ _tiny
Tiny
Near
NEAR_HEAP
_ _near
Small
Far
FAR_HEAP
_ _far
Medium
Huge
HUGE_HEAP
_ _huge
Large
Table 22: Heaps and memory types