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| author | Jakub Jelinek <jakub@redhat.com> | 2023-09-06 08:51:00 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-09-06 08:51:00 +0200 |
| commit | 80acabb6dd05090db67805cdd358fe974b45e2ed (patch) | |
| tree | be4175443b119ebe0736004381f6e4bd5efc7d75 /gcc/c-family | |
| parent | c1597e7fb9f9ecb9d7c33b5afa48031f284375de (diff) | |
| download | gcc-80acabb6dd05090db67805cdd358fe974b45e2ed.zip gcc-80acabb6dd05090db67805cdd358fe974b45e2ed.tar.gz gcc-80acabb6dd05090db67805cdd358fe974b45e2ed.tar.bz2 | |
c: Don't pedwarn on _FloatN{,x} or {f,F}N{,x} suffixes for C2X
Now that _Float{16,32,64,128,32x,64x,128x} and
{f,F}{16,32,64,128,32x,64x,128x} literal suffixes are in C23 standard,
I think it is undesirable to pedwarn about these for -std=c2x, so this
patch uses pedwarn_c11 instead. In c-family/, we don't have that function
and am not sure it would be very clean to define dummy pedwarn_c11 in the
C++ FE, so the patch just does what pedwarn_c11 does using pedwarn/warning.
2023-09-06 Jakub Jelinek <jakub@redhat.com>
gcc/c-family/
* c-lex.cc (interpret_float): For C diagnostics on FN and FNx suffixes
append " before C2X" to diagnostics text and follow behavior of
pedwarn_c11.
gcc/c/
* c-decl.cc (declspecs_add_type): Use pedwarn_c11 rather than pedwarn
for _FloatN{,x} diagnostics and append " before C2X" to the diagnostic
text.
gcc/testsuite/
* gcc.dg/c11-floatn-1.c: New test.
* gcc.dg/c11-floatn-2.c: New test.
* gcc.dg/c11-floatn-3.c: New test.
* gcc.dg/c11-floatn-4.c: New test.
* gcc.dg/c11-floatn-5.c: New test.
* gcc.dg/c11-floatn-6.c: New test.
* gcc.dg/c11-floatn-7.c: New test.
* gcc.dg/c11-floatn-8.c: New test.
* gcc.dg/c2x-floatn-1.c: New test.
* gcc.dg/c2x-floatn-2.c: New test.
* gcc.dg/c2x-floatn-3.c: New test.
* gcc.dg/c2x-floatn-4.c: New test.
* gcc.dg/c2x-floatn-5.c: New test.
* gcc.dg/c2x-floatn-6.c: New test.
* gcc.dg/c2x-floatn-7.c: New test.
* gcc.dg/c2x-floatn-8.c: New test.
Diffstat (limited to 'gcc/c-family')
| -rw-r--r-- | gcc/c-family/c-lex.cc | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/gcc/c-family/c-lex.cc b/gcc/c-family/c-lex.cc index d8aa290..f72898f 100644 --- a/gcc/c-family/c-lex.cc +++ b/gcc/c-family/c-lex.cc @@ -1021,7 +1021,25 @@ interpret_float (const cpp_token *token, unsigned int flags, error ("unsupported non-standard suffix on floating constant"); return error_mark_node; } - else if (c_dialect_cxx () && !extended) + else if (!c_dialect_cxx ()) + { + if (warn_c11_c2x_compat > 0) + { + if (pedantic && !flag_isoc2x) + pedwarn (input_location, OPT_Wc11_c2x_compat, + "non-standard suffix on floating constant " + "before C2X"); + else + warning (OPT_Wc11_c2x_compat, + "non-standard suffix on floating constant " + "before C2X"); + } + else if (warn_c11_c2x_compat != 0 && pedantic && !flag_isoc2x) + pedwarn (input_location, OPT_Wpedantic, + "non-standard suffix on floating constant " + "before C2X"); + } + else if (!extended) { if (cxx_dialect < cxx23) pedwarn (input_location, OPT_Wpedantic, |