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add new tests from scc@netscape.com

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git-svn-id: svn://10.0.0.236/trunk@22307 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
alecf%netscape.com
1999-02-27 04:08:24 +00:00
parent 975ac58a63
commit 1bb4856df5
1 changed files with 49 additions and 13 deletions
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62
mozilla/configure.in
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@@ -406,19 +406,6 @@ else
AC_MSG_RESULT(no)
fi
dnl Check for static_cast<>
AC_CACHE_CHECK(for advanced C++ casting,
ac_cv_cpp_casts,
[AC_TRY_COMPILE(class A {};
class B: public A {};,
B* b = new B;
A* a = static_cast<A*>(b);,
ac_cv_cpp_casts=yes,
ac_cv_cpp_casts=no)])
if test $ac_cv_cpp_casts = yes ; then
AC_DEFINE(HAVE_CPP_CASTS)
fi
AC_CACHE_CHECK(for namespaces,
ac_cv_cpp_namespaces,
[AC_TRY_COMPILE(namespace X {},
@@ -429,6 +416,55 @@ if test $ac_cv_cpp_namespaces = yes ; then
AC_DEFINE(HAVE_CPP_NAMESPACES)
fi
AC_CACHE_CHECK(for C++ \"explicit\" keyword,
ac_cv_cpp_explicit,
[AC_TRY_COMPILE(class X {
public: explicit X(int i) : i_(i) {}
private: int i_;
};,
X x(3);,
ac_cv_cpp_explicit=yes,
ac_cv_cpp_explicit=no)])
if test $ac_cv_cpp_explicit = yes ; then
AC_DEFINE(HAVE_CPP_EXPLICIT)
fi
AC_CACHE_CHECK(for C++ \"using\" keyword,
ac_cv_cpp_using,
[AC_TRY_COMPILE(class X { public: int go() {return 3;} };
class Y : public X {
private: using X::go;
};,
X x; Y y;,
ac_cv_cpp_using=yes,
ac_cv_cpp_using=no)])
if test $ac_cv_cpp_using = yes ; then
AC_DEFINE(HAVE_CPP_USING)
fi
AC_CACHE_CHECK(for C++ reinterpret_cast,
ac_cv_cpp_reinterpret_cast,
[AC_TRY_COMPILE(struct X { int i; };
struct Y { int i; };,
X x; Y*y = reinterpret_cast<Y*>(&x);,
ac_cv_cpp_reinterpret_cast=yes,
ac_cv_cpp_reinterpret_cast=no)])
if test $ac_cv_cpp_reinterpret_cast = yes ; then
AC_DEFINE(HAVE_CPP_NEW_CASTS)
fi
dnl note that this one is reversed - if the test fails, then
dnl we require implementations of unused methods
AC_CACHE_CHECK(if C++ requires implementation of unused methods,
ac_cv_cpp_unused_required,
[AC_TRY_COMPILE(class X {private: void never_called();};,
X x;,
ac_cv_cpp_unused_required=no,
ac_cv_cpp_unused_requires=yes)])
if test $ac_cv_cpp_unused_required = yes ; then
AC_DEFINE(NEED_CPP_UNUSED_IMPLEMENTATIONS)
fi
CC=$_SAVE_CC
dnl End of C++ language/feature checks