Imagecraft c compiler and development environment for the atmel avr

ICCV8 for AVR – C Compiler for Atmel AVRStandard Library And Memory Allocation FunctionsThe Standard Library header file defines the macros NULL andRAND_MAX and typedefs size_t and declares the following functions. Note thatyou must initialize the heap with the _NewHeap call before using any of the memoryallocation routines (calloc, malloc, and realloc). int abs(int i)returns the absolute value of i. int atoi(char *s)converts the initial characters in s into an integer, or returns 0 if an error occurs. double atof(const char *s)converts the initial characters in s into a double and returns it. long atol(char *s)converts the initial characters in s into a long integer, or returns 0 if an erroroccurs. void *calloc(size_t nelem, size_t size)returns a memory chunk large enough to hold nelem number of objects, each ofsize size. The memory is initialized to zeros. It returns 0 if it cannot honor therequest. void exit(status)terminates the program. Under an embedded environment, typically it simplyloops forever and its main use is to act as the return point for the user mainfunction. void free(void *ptr)frees a previously allocated heap memory. char *ftoa(float f, int *status)converts a floating-point number to the its ASCII representation. It returns a staticbuffer of approximately 15 chars. If the input is out of range, *status is set to theconstant, _FTOA_TOO_LARGE or _FTOA_TOO_SMALL, defined in stdlib.h,and 0 is returned. Otherwise, *status is set to 0 and the char buffer is returned.This version of the ftoa is fast but cannot handle values outside of the rangelisted. Please contact us if you need a (much) larger version that handles greaterranges.99