diff options
Diffstat (limited to 'libcpp/expr.c')
| -rw-r--r-- | libcpp/expr.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/libcpp/expr.c b/libcpp/expr.c index 4b514b1..65baafe 100644 --- a/libcpp/expr.c +++ b/libcpp/expr.c @@ -98,8 +98,8 @@ interpret_float_suffix (cpp_reader *pfile, const uchar *s, size_t len) flags = 0; f = d = l = w = q = i = fn = fnx = fn_bits = 0; - /* The following decimal float suffixes, from TR 24732:2009 and TS - 18661-2:2015, are supported: + /* The following decimal float suffixes, from TR 24732:2009, TS + 18661-2:2015 and C2X, are supported: df, DF - _Decimal32. dd, DD - _Decimal64. @@ -744,9 +744,16 @@ cpp_classify_number (cpp_reader *pfile, const cpp_token *token, cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0, "fixed-point constants are a GCC extension"); - if ((result & CPP_N_DFLOAT) && CPP_PEDANTIC (pfile)) - cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0, - "decimal float constants are a GCC extension"); + if (result & CPP_N_DFLOAT) + { + if (CPP_PEDANTIC (pfile) && !CPP_OPTION (pfile, dfp_constants)) + cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0, + "decimal float constants are a C2X feature"); + else if (CPP_OPTION (pfile, cpp_warn_c11_c2x_compat) > 0) + cpp_warning_with_line (pfile, CPP_W_C11_C2X_COMPAT, + virtual_location, 0, + "decimal float constants are a C2X feature"); + } result |= CPP_N_FLOATING; } |