Re: [avr-gcc-list] string initialization using "" and { }

[Graham Davies]

Zoran Rilak wrote:
>  I can't find an explanation ... why
> there should be a difference in the
> generated code for string vs.
> array-of-chars initializers.

If you declare a string and then use it as an initializer for an array of 
characters, the compiler will arrange for the string to be stored somewhere 
and then copy it to the array to perform the initialization.  Should you 
need the string "abd" elsewhere in your program, the same copy might be 
used.  None of this applies to initializing each element of the array 
separately.  The compiler is at liberty to generate code that uses literals, 
which is more efficient.  The initializer values are not available for reuse 
elsewhere.

Graham.