From 873b45d39c14fee6b68032b83ea6bfbc023e3379 Mon Sep 17 00:00:00 2001 From: Iain Buclaw Date: Thu, 16 Jul 2020 18:56:18 +0200 Subject: d: Add -Wvarargs warning flag to the D front-end The D front-end has C-style variadic functions and va_start/va_arg, so it is right to also have warnings for inproper use. gcc/d/ChangeLog: PR d/96154 * gdc.texi (Warnings): Document -Wvarargs. * lang.opt: Add -Wvarargs gcc/testsuite/ChangeLog: PR d/96154 * gdc.dg/pr96154a.d: New test. * gdc.dg/pr96154b.d: New test. --- gcc/d/gdc.texi | 6 ++++++ gcc/d/lang.opt | 4 ++++ 2 files changed, 10 insertions(+) (limited to 'gcc/d') diff --git a/gcc/d/gdc.texi b/gcc/d/gdc.texi index 2ce560f..9bc1297 100644 --- a/gcc/d/gdc.texi +++ b/gcc/d/gdc.texi @@ -600,6 +600,12 @@ Warn when a @code{pragma()} is encountered that is not understood by where a pragma that is part of the D language, but not implemented by the compiler, won't get reported. +@item -Wno-varargs +@cindex Wvarargs +@cindex Wno-varargs +Do not warn upon questionable usage of the macros used to handle variable +arguments like @code{va_start}. + @item -fignore-unknown-pragmas @cindex @option{-fignore-unknown-pragmas} @cindex @option{-fno-ignore-unknown-pragmas} diff --git a/gcc/d/lang.opt b/gcc/d/lang.opt index e14c83d..ade92d2 100644 --- a/gcc/d/lang.opt +++ b/gcc/d/lang.opt @@ -146,6 +146,10 @@ Wunknown-pragmas D LangEnabledBy(D, Wall) ; Documented in C +Wvarargs +D +; Documented in C + X D Generate JSON file. -- cgit v1.1