Assignment of int to unsigned char : literal flag ?

[Isabelle, Francois]

Regarding the warning " Assignment of int to unsigned char "

I'm looking for a flag that would allow the following:

...
unsigned char uChar;

for( uChar = 0 ; uChar < 10 ; uChar++)
{

}
...

but still complains about
...
unsigned char uChar;
unsigned int min;
unsigned int max
for( uChar = min ; uChar < max ; uChar++)
{

}
...
or
...
unsigned char uChar;

for( uChar = 0 ; uChar < 256 ; uChar++)
{

}
...
...
For now I must do this to supress the warning
...
unsigned char uChar;

for( uChar = (unsigned char)0 ; uChar < (unsigned char)10 ; uChar++)
{

}
...
The reason I use an (unsigned char) is that I have a very limited stack.
I would like to tell spint to check literal numerical value to see if the
match the type 
instead of threating them as "int" automatically.

Does it exist yet ?

Thanks 
Francois Isabelle