Atmel CAVR-4 Manuale Utente

CAVR-4

Part 2. Compiler reference

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Standard C library definitions, for user programs.

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Embedded C++ library definitions, for user programs.

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CSTARTUP

, the module containing the start-up code. It is described in the chapter 

The DLIB runtime environment in this guide.

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Runtime support libraries; for example low-level floating-point routines.

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Intrinsic functions, allowing low-level use of AVR features. See the chapter 
Intrinsic functions for more information.

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Special compiler support for accessing strings in flash memory, see AVR–specific 
library functions, page 249.

This section lists the header files specific to the DLIB library C definitions. Header files 
may additionally contain target-specific definitions; these are documented in the chapter 
IAR language extensions.

The following table lists the C header files:

assert.h

Enforcing assertions when functions execute

ctype.h

Classifying characters

errno.h

Testing error codes reported by library functions

float.h

Testing floating-point type properties

iso646.h

Using Amendment 1—iso646.h standard header

limits.h

Testing integer type properties

locale.h

Adapting to different cultural conventions

math.h

Computing common mathematical functions

setjmp.h

Executing non-local goto statements

signal.h

Controlling various exceptional conditions

stdarg.h

Accessing a varying number of arguments

stdbool.h 

Adds support for the bool data type in C.

stddef.h

Defining several useful types and macros

stdio.h

Performing input and output

stdlib.h

Performing a variety of operations

string.h

Manipulating several kinds of strings

time.h

Converting between various time and date formats

wchar.h

Support for wide characters

wctype.h

Classifying wide characters