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Suppress the floating point precision warning if an explicit cast is used

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This commit is contained in:
bbbradsmith 2023-05-03 01:44:49 -04:00
parent e3887d7ead
commit 2ac9c6f51e
1 changed files with 5 additions and 4 deletions
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9
src/cc65/typeconv.c
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@ -55,7 +55,7 @@
static void DoConversion (ExprDesc* Expr, const Type* NewType)
static void DoConversion (ExprDesc* Expr, const Type* NewType, int Explicit)
/* Emit code to convert the given expression to a new type. */
{
const Type* OldType;
@ -128,8 +128,9 @@ static void DoConversion (ExprDesc* Expr, const Type* NewType)
*/
if (IsClassFloat (OldType) && IsClassInt (NewType)) {
long IVal = (long)Expr->V.FVal.V;
if (Expr->V.FVal.V != FP_D_FromInt(IVal).V)
if ((Expr->V.FVal.V != FP_D_FromInt(IVal).V) && !Explicit) {
Warning ("Floating point constant (%f) converted to integer loses precision (%d)",Expr->V.FVal.V,IVal);
}
Expr->IVal = IVal;
}
@ -293,7 +294,7 @@ void TypeConversion (ExprDesc* Expr, const Type* NewType)
/* Both types must be complete */
if (!IsIncompleteESUType (NewType) && !IsIncompleteESUType (Expr->Type)) {
/* Do the actual conversion */
DoConversion (Expr, NewType);
DoConversion (Expr, NewType, 0);
} else {
/* We should have already generated error elsewhere so that we
** could just silently fail here to avoid excess errors, but to
@ -340,7 +341,7 @@ void TypeCast (ExprDesc* Expr)
ReplaceType (Expr, NewType);
} else if (IsCastType (Expr->Type)) {
/* Convert the value. The result has always the new type */
DoConversion (Expr, NewType);
DoConversion (Expr, NewType, 1);
} else {
TypeCompatibilityDiagnostic (NewType, Expr->Type, 1,
"Cast to incompatible type '%s' from '%s'");