Imagecraft c compiler and development environment for the atmel avr

ICCV8 for AVR – C Compiler for Atmel AVRBuild Options - CompilerStrict Checking - ANSI C evolves from the original K&R C. While the ANSI Cstandard is a much tighter language than K&R C with more strict type checking,etc., it still allows certain operations that are potentially unsafe. If selected, thecompiler warns about declarations and casts of function types without prototypes,assignments between pointers to integers and pointers to enums, andconversions from pointers to smaller integral types. It also warns aboutunrecognized control lines, non-ANSI language extensions and source charactersin literals, unreferenced variables and static functions, and declaring arrays ofincomplete types.This option should normally be ON and all warnings should be studied to ensurethat they are acceptable.ANSI C Portability Conformance Checking - If selected, the compiler warnswhen your program exceeds some ANSI environmental limits, such as more than257 cases in switch statements, or more than 512 nesting levels, etc. This doesnot affect the operation of your program under our compilers, but may causeproblems with other ANSI C compilers.Treat const as __flash - For backward compatibility, interpret the constqualifier to refer to program memory, along with __flash.Accept Extensions - If selected, the compiler accepts the following extensions: C++ style comments, which treat everything up to the newline after the characterpair // as comments. support for binary constants (such as 0b10101). C++ style anonymous union and struct; e.g., you can writestruct {struct {int a;int b;};union {int c;int d;} x;and reference x.a, x.b, x.c and x.d58