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Fix bitwise not for signed integers

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This commit is contained in:
gingerBill
2018-06-15 23:01:12 +01:00
parent cd7e260f4e
commit ba776a3c9f
2 changed files with 5 additions and 3 deletions
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src/exact_value.cpp
+4 -2
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@@ -353,7 +353,7 @@ ExactValue exact_value_make_imag(ExactValue v) {
}
ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision) {
ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision, bool is_unsigned) {
switch (op) {
case Token_Add: {
switch (v.kind) {
@@ -404,7 +404,9 @@ ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision)
// NOTE(bill): unsigned integers will be negative and will need to be
// limited to the types precision
// IMPORTANT NOTE(bill): Max precision is 64 bits as that's how integers are stored
i = i & unsigned_integer_maxs[precision/8];
if (is_unsigned) {
i = i & unsigned_integer_maxs[precision/8];
}
// if (0 < precision && precision < 64) {
// i = i & ~(-1ll << precision);
// }