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Allow unary +/- for floating point constants

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bbbradsmith 2023-05-02 23:50:01 -04:00
parent a109f475ed
commit a686d1fa8e
1 changed files with 33 additions and 18 deletions
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51
src/cc65/expr.c
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@ -1901,31 +1901,46 @@ static void UnaryOp (ExprDesc* Expr)
/* Get the expression */
hie10 (Expr);
/* We can only handle integer types */
if (!IsClassInt (Expr->Type)) {
Error ("Argument must have integer type");
ED_MakeConstAbsInt (Expr, 1);
}
/* Check for a constant numeric expression */
if (ED_IsConstAbs (Expr)) {
/* Value is numeric */
switch (Tok) {
case TOK_MINUS: Expr->IVal = -Expr->IVal; break;
case TOK_PLUS: break;
case TOK_COMP: Expr->IVal = ~Expr->IVal; break;
default: Internal ("Unexpected token: %d", Tok);
if (IsClassFloat (Expr->Type)) {
switch (Tok) {
case TOK_MINUS: Expr->V.FVal = FP_D_Sub(FP_D_Make(0.0),Expr->V.FVal); break;
case TOK_PLUS: break;
case TOK_COMP: Error ("Unary ~ operator not valid for floating point constant"); break;
default: Internal ("Unexpected token: %d", Tok);
}
} else {
if (!IsClassInt (Expr->Type)) {
Error ("Constant argument must have integer or float type");
ED_MakeConstAbsInt (Expr, 1);
}
/* Value is numeric */
switch (Tok) {
case TOK_MINUS: Expr->IVal = -Expr->IVal; break;
case TOK_PLUS: break;
case TOK_COMP: Expr->IVal = ~Expr->IVal; break;
default: Internal ("Unexpected token: %d", Tok);
}
/* Adjust the type of the expression */
Expr->Type = IntPromotion (Expr->Type);
/* Limit the calculated value to the range of its type */
LimitExprValue (Expr, 1);
}
/* Adjust the type of the expression */
Expr->Type = IntPromotion (Expr->Type);
/* Limit the calculated value to the range of its type */
LimitExprValue (Expr, 1);
} else {
unsigned Flags;
/* If not constant, we can only handle integer types */
if (!IsClassInt (Expr->Type)) {
Error ("Non-constant argument must have integer type");
ED_MakeConstAbsInt (Expr, 1);
}
/* Value is not constant */
LoadExpr (CF_NONE, Expr);