Atmel CAVR-4 Manual De Usuario

CAVR-4

Part 2. Compiler reference

The messages returned by 

strerror()

 depending on the argument are:

The time zone function is not supported.

The 

clock()

 function is not supported.

The information in this section is valid only if the runtime library configuration you have 
chosen supports file descriptors. See the chapter The DLIB runtime environment for 
more information about runtime library configurations.

The 

NULL

 macro is defined to 

0

.

The 

assert()

 function prints:

filename:linenr expression -- assertion failed

when the parameter evaluates to zero.

NaN

 (Not a Number) will be returned by the mathematic functions on domain errors.

The mathematics functions set the integer expression 

errno

 to 

ERANGE

 (a macro in 

errno.h

) on underflow range errors.

EZERO

no error

EDOM

domain error

ERANGE

range error

<0 || >99

unknown error

all others

error No.xx