diff options
Diffstat (limited to 'gdb/doublest.c')
| -rw-r--r-- | gdb/doublest.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gdb/doublest.c b/gdb/doublest.c index 6e96d78..49e3689 100644 --- a/gdb/doublest.c +++ b/gdb/doublest.c @@ -172,12 +172,14 @@ convert_floatformat_to_doublest (const struct floatformat *fmt, special_exponent = exponent == 0 || exponent == fmt->exp_nan; -/* Don't bias NaNs. Use minimum exponent for denorms. For simplicity, - we don't check for zero as the exponent doesn't matter. */ + /* Don't bias NaNs. Use minimum exponent for denorms. For simplicity, + we don't check for zero as the exponent doesn't matter. Note the cast + to int; exp_bias is unsigned, so it's important to make sure the + operation is done in signed arithmetic. */ if (!special_exponent) exponent -= fmt->exp_bias; else if (exponent == 0) - exponent = 1 - fmt->exp_bias; + exponent = 1 - (int) fmt->exp_bias; /* Build the result algebraically. Might go infinite, underflow, etc; who cares. */ |