func checkNoSideEffects(x *cc.Expr, mode int) {
var before, after []*cc.Stmt
old := x.String()
doSideEffects(x, &before, &after, mode)
if len(before)+len(after) > 0 {
fprintf(x.Span, "cannot handle side effects in %s", old)
}
}
func matchSize(fn *cc.Decl, obj *cc.Expr, objType *cc.Type, siz *cc.Expr) bool {
switch siz.Op {
default:
return false
case cc.SizeofType:
// ok if sizeof type of first arg
return sameType(siz.Type, objType)
case cc.SizeofExpr:
// ok if sizeof *firstarg
y := siz.Left
if y.Op == cc.Paren {
y = y.Left
}
return obj.String() == y.String()
}
}