diff options
Diffstat (limited to 'gcc/c-family/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-family/c-cppbuiltin.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c index c114bbd..083d5fd 100644 --- a/gcc/c-family/c-cppbuiltin.c +++ b/gcc/c-family/c-cppbuiltin.c @@ -245,11 +245,10 @@ builtin_define_float_constants (const char *name_prefix, if (type_decimal_dig < type_d_decimal_dig) type_decimal_dig++; } - /* Arbitrarily, define __DECIMAL_DIG__ when defining macros for long - double, although it may be greater than the value for long - double. */ + /* Define __DECIMAL_DIG__ to the value for long double to be + compatible with C99 and C11; see DR#501 and N2108. */ if (type == long_double_type_node) - builtin_define_with_int_value ("__DECIMAL_DIG__", decimal_dig); + builtin_define_with_int_value ("__DECIMAL_DIG__", type_decimal_dig); sprintf (name, "__%s_DECIMAL_DIG__", name_prefix); builtin_define_with_int_value (name, type_decimal_dig); |