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tccgen.c: In parse_btype, handle typedef types with added type qualifiers.

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In a case like

    typedef int T[1];
    const T x;

we must make a copy of the typedef type so that we can add the type
qualifiers to it.

The following code used to give

error: incompatible types for redefinition of 'f'

    typedef int T[1];
    void f(const int [1]);
    void f(const T);
This commit is contained in:
Edmund Grimley Evans 2015-11-19 23:45:33 +00:00
parent 58a34d22c9
commit 30c54c9d43
1 changed files with 11 additions and 1 deletions
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12
tccgen.c
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@ -3314,7 +3314,17 @@ static int parse_btype(CType *type, AttributeDef *ad)
if (!s || !(s->type.t & VT_TYPEDEF))
goto the_end;
t |= (s->type.t & ~VT_TYPEDEF);
type->ref = s->type.ref;
if ((t & VT_ARRAY) &&
t & (VT_CONSTANT | VT_VOLATILE) & ~s->type.ref->type.t) {
/* This is a case like "typedef int T[1]; const T x;"
in which which we must make a copy of the typedef
type so that we can add the type qualifiers to it. */
type->ref = sym_push(SYM_FIELD, &s->type.ref->type,
0, s->type.ref->c);
type->ref->type.t |= t & (VT_CONSTANT | VT_VOLATILE);
}
else
type->ref = s->type.ref;
if (s->r) {
/* get attributes from typedef */
if (0 == ad->a.aligned)