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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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23
src/cc65/expr.c
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@@ -1901,14 +1901,22 @@ static void UnaryOp (ExprDesc* Expr)
/* Get the expression */ /* Get the expression */
hie10 (Expr); hie10 (Expr);
/* We can only handle integer types */ /* Check for a constant numeric expression */
if (ED_IsConstAbs (Expr)) {
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)) { if (!IsClassInt (Expr->Type)) {
Error ("Argument must have integer type"); Error ("Constant argument must have integer or float type");
ED_MakeConstAbsInt (Expr, 1); ED_MakeConstAbsInt (Expr, 1);
} }
/* Check for a constant numeric expression */
if (ED_IsConstAbs (Expr)) {
/* Value is numeric */ /* Value is numeric */
switch (Tok) { switch (Tok) {
case TOK_MINUS: Expr->IVal = -Expr->IVal; break; case TOK_MINUS: Expr->IVal = -Expr->IVal; break;
@@ -1922,10 +1930,17 @@ static void UnaryOp (ExprDesc* Expr)
/* Limit the calculated value to the range of its type */ /* Limit the calculated value to the range of its type */
LimitExprValue (Expr, 1); LimitExprValue (Expr, 1);
}
} else { } else {
unsigned Flags; 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 */ /* Value is not constant */
LoadExpr (CF_NONE, Expr); LoadExpr (CF_NONE, Expr);