diff options
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index 1565aac..fa4d9a1 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -105,6 +105,7 @@ builtin_define_float_constants (const char *name_prefix, char name[64], buf[128]; int dig, min_10_exp, max_10_exp; int decimal_dig; + int type_decimal_dig; fmt = REAL_MODE_FORMAT (TYPE_MODE (type)); gcc_assert (fmt->b != 10); @@ -198,8 +199,20 @@ builtin_define_float_constants (const char *name_prefix, if (decimal_dig < d_decimal_dig) decimal_dig++; } + /* Similar, for this type rather than long double. */ + { + double type_d_decimal_dig = 1 + fmt->p * log10_b; + type_decimal_dig = type_d_decimal_dig; + if (type_decimal_dig < type_d_decimal_dig) + type_decimal_dig++; + } if (type == long_double_type_node) builtin_define_with_int_value ("__DECIMAL_DIG__", decimal_dig); + else + { + sprintf (name, "__%s_DECIMAL_DIG__", name_prefix); + builtin_define_with_int_value (name, type_decimal_dig); + } /* Since, for the supported formats, B is always a power of 2, we construct the following numbers directly as a hexadecimal |