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glr2.cc: avoid warnings about long long

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* data/skeletons/glr2.cc: Disable the warning before triggering it.
This commit is contained in:
Akim Demaille
2020-08-30 19:58:14 +02:00
parent 3c36d871fa
commit 82d913741b
2 changed files with 42 additions and 16 deletions
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27
TODO
View File

@@ -151,8 +151,35 @@ Line -1 and -3 should mention CATEGORIE, not CATEGORY.
* Bison 3.8
** Rewrite glr.cc
*** glr.c
Get rid of scaffolding in glr.c.
*** pragmas in glr2.cc
Remove the pragmas that disable some warnings:
// This skeleton is based on C, yet compiles it as C++.
// So expect warnings about C style casts.
#if defined __clang__ && 306 <= __clang_major__ * 100 + __clang_minor__
# pragma clang diagnostic ignored "-Wold-style-cast"
#elif defined __GNUC__ && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# pragma GCC diagnostic ignored "-Wold-style-cast"
#endif
// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
// -pedantic reports as being a C++11 extension.
#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
&& defined __clang__ && 4 <= __clang_major__
# pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
We should use clean C++ code.
*** namespaces in glr2.cc
StrongIndexAlias should be in the parser's namespace. Possibly even an
inner class.
* Chains
** Unit rules / Injection rules (Akim Demaille)
Maybe we could expand unit rules (or "injections", see
https://homepages.cwi.nl/~daybuild/daily-books/syntax/2-sdf/sdf.html), i.e.,

31
data/skeletons/glr2.cc
View File

@@ -162,6 +162,21 @@ b4_percent_code_get([[requires]])[
]b4_cast_define[
]b4_null_define[
// This skeleton is based on C, yet compiles it as C++.
// So expect warnings about C style casts.
#if defined __clang__ && 306 <= __clang_major__ * 100 + __clang_minor__
# pragma clang diagnostic ignored "-Wold-style-cast"
#elif defined __GNUC__ && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# pragma GCC diagnostic ignored "-Wold-style-cast"
#endif
// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
// -pedantic reports as being a C++11 extension.
#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
&& defined __clang__ && 4 <= __clang_major__
# pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
template <typename Parameter>
class StrongIndexAlias
{
@@ -228,22 +243,6 @@ class StrongIndexAlias
std::ptrdiff_t value_;
};
// This skeleton is based on C, yet compiles it as C++.
// So expect warnings about C style casts.
#if defined __clang__ && 306 <= __clang_major__ * 100 + __clang_minor__
# pragma clang diagnostic ignored "-Wold-style-cast"
#elif defined __GNUC__ && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# pragma GCC diagnostic ignored "-Wold-style-cast"
#endif
// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
// -pedantic reports as being a C++11 extension.
#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
&& defined __clang__ && 4 <= __clang_major__
# pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
// Whether we are compiled with exception support.
#ifndef YY_EXCEPTIONS
# if defined __GNUC__ && !defined __EXCEPTIONS