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a void to void cast.

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Allow tcc to compile the following program
    ///////
	void func1() {}
	void func2() {
	  return func1();
	}
    //////
gcc accepts this program
This commit is contained in:
seyko 2015-03-03 15:39:57 +03:00
parent 09feeca5df
commit 6fd4e5bace
1 changed files with 14 additions and 2 deletions
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14
tccgen.c
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@ -2412,8 +2412,20 @@ static void gen_assign_cast(CType *dt)
st = &vtop->type; /* source type */ st = &vtop->type; /* source type */
dbt = dt->t & VT_BTYPE; dbt = dt->t & VT_BTYPE;
sbt = st->t & VT_BTYPE; sbt = st->t & VT_BTYPE;
if (sbt == VT_VOID || dbt == VT_VOID) if (sbt == VT_VOID || dbt == VT_VOID) {
if (sbt == VT_VOID && dbt == VT_VOID)
; /*
It is Ok if both are void
A test program:
void func1() {}
void func2() {
return func1();
}
gcc accepts this program
*/
else
tcc_error("cannot cast from/to void"); tcc_error("cannot cast from/to void");
}
if (dt->t & VT_CONSTANT) if (dt->t & VT_CONSTANT)
tcc_warning("assignment of read-only location"); tcc_warning("assignment of read-only location");
switch(dbt) { switch(dbt) {