diff options
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index c6112d8..5d6033d 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -98,6 +98,7 @@ builtin_define_float_constants (const char *name_prefix, const double log10_2 = .30102999566398119521; double log10_b; const struct real_format *fmt; + const struct real_format *ldfmt; char name[64], buf[128]; int dig, min_10_exp, max_10_exp; @@ -105,6 +106,8 @@ builtin_define_float_constants (const char *name_prefix, fmt = REAL_MODE_FORMAT (TYPE_MODE (type)); gcc_assert (fmt->b != 10); + ldfmt = REAL_MODE_FORMAT (TYPE_MODE (long_double_type_node)); + gcc_assert (ldfmt->b != 10); /* The radix of the exponent representation. */ if (type == float_type_node) @@ -187,7 +190,8 @@ builtin_define_float_constants (const char *name_prefix, The only macro we care about is this number for the widest supported floating type, but we want this value for rendering constants below. */ { - double d_decimal_dig = 1 + fmt->p * log10_b; + double d_decimal_dig + = 1 + (fmt->p < ldfmt->p ? ldfmt->p : fmt->p) * log10_b; decimal_dig = d_decimal_dig; if (decimal_dig < d_decimal_dig) decimal_dig++; |