#2751 signedness for char needs to matter more

[Philipp Klaus Krause]

SDCC should take signedness of char more seriously. SDCC compiles

unsigned char *uc = "test";
signed char *sc = "test";
char *c = "test";

without warning or error. But the first and second are a constarint violation, requiring a diagnostic. I suggest a warning.

Also,

const char *g;

void f(void)
{
    g = _Generic("test"[0], char: "char", unsigned char: "unsigned char", signed char: "signed char");
}

gives an error ("error 228: multiple matching expressions in generic association"), but shouldn't.

Philipp

[Philipp Klaus Krause]

Fixed in [r11150].

Philipp