Atmel CAVR-4 Manual De Usuario

CAVR-4

IAR CLIB Library

Reference Guide

The following C library functions will under some circumstances be handled as intrinsic 
functions and will generate inline code instead of an ordinary function call:

memcpy

memset

strcat

strcmp

strcpy

strlen

The IAR CLIB Library provides most of the important C library definitions that apply 
to embedded systems. These are of the following types:

●

Standard C library definitions available for user programs. These are documented in 
this chapter.

●

The system startup code. It is described in the chapter The CLIB runtime 
environment in this guide.

●

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

●

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

●

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

clocale

Adapting to different cultural conventions

cmath

Computing common mathematical functions

csetjmp

Executing non-local goto statements

csignal

Controlling various exceptional conditions

cstdarg

Accessing a varying number of arguments

cstddef

Defining several useful types and macros

cstdio

Performing input and output

cstdlib

Performing a variety of operations

cstring

Manipulating several kinds of strings

ctime

Converting between various time and date formats