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c++: fix old cast warnings

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We still have a few old C casts in lalr1.cc, let's get rid of them.
Reported by Frank Heckenbach.

Actually, let's monitor all our casts using easy to grep macros.
Let's use these macros to use the C++ standard casts when we are in
C++.

* data/skeletons/c.m4 (b4_cast_define): New.
* data/skeletons/glr.c, data/skeletons/glr.cc,
* data/skeletons/lalr1.cc, data/skeletons/stack.hh,
* data/skeletons/yacc.c:
Use it and/or its casts.

* tests/actions.at, tests/cxx-type.at,
* tests/glr-regression.at, tests/headers.at, tests/torture.at,
* tests/types.at:
Use YY_CAST instead of C casts.

* configure.ac (warn_cxx): Add -Wold-style-cast.
* doc/bison.texi: Disable it.
This commit is contained in:
Akim Demaille
2019-11-01 16:13:46 +01:00
parent 2bd1d9e20f
commit 3398b0fa90
14 changed files with 186 additions and 137 deletions
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4
tests/types.at
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@@ -166,7 +166,7 @@ m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
[if (res)
{
AT_VAL.ival = (res - '0') * 10;
AT_VAL.fval = (float) (res - '0') / 10.f;
AT_VAL.fval = YY_CAST (float, res - '0') / 10.f;
}],
[30 0.3])
@@ -197,7 +197,7 @@ m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
["12"],
[if (res)
{
AT_VAL.up = (struct u *) malloc (sizeof *AT_VAL.up);
AT_VAL.up = YY_CAST (struct u *, malloc (sizeof *AT_VAL.up));
assert (AT_VAL.up);
AT_VAL.up->ival = res - '0';
}