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[binutils-gdb] Add cast to VEC_iterate
- From: Pedro Alves <palves at sourceware dot org>
- To: gdb-cvs at sourceware dot org
- Date: 29 Oct 2015 17:42:27 -0000
- Subject: [binutils-gdb] Add cast to VEC_iterate
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7535d5edeaa5cfa5ba369e8d3ffb47972483394a
commit 7535d5edeaa5cfa5ba369e8d3ffb47972483394a
Author: Pedro Alves <palves@redhat.com>
Date: Thu Oct 29 15:25:08 2015 +0000
Add cast to VEC_iterate
Fixes this in C++:
../../src/gdb/break-catch-sig.c: In function â??int VEC_gdb_signal_type_iterate(const VEC_gdb_signal_type*, unsigned int, gdb_signal_type*)â??:
../../src/gdb/common/vec.h:576:12: error: invalid conversion from â??intâ?? to â??gdb_signal_type {aka gdb_signal}â?? [-fpermissive]
*ptr = 0; \
^
../../src/gdb/common/vec.h:417:1: note: in expansion of macro â??DEF_VEC_FUNC_Pâ??
DEF_VEC_FUNC_P(T) \
^
../../src/gdb/break-catch-sig.c:37:1: note: in expansion of macro â??DEF_VEC_Iâ??
DEF_VEC_I (gdb_signal_type);
^
I actually carried a different fix in the C++ branch that removed this
assignment and then adjusted all callers that depended on it. The
thinking was that this is for the case where we're returning false,
indicating end of iteration. But that results in a much larger and
tricker patch; looking back it seems quite pointless. I looked at the
history of GCC's C++ conversion and saw that they added this same cast
to their version of vec.h, FWIW. (GCC's vec.h is completely different
nowadays, having been converted to templates meanwhile.)
gdb/ChangeLog:
2015-10-29 Pedro Alves <palves@redhat.com>
* common/vec.h (DEF_VEC_FUNC_P) [iterate]: Cast 0 to type T.
Diff:
---
gdb/ChangeLog | 4 ++++
gdb/common/vec.h | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9433221..c22eb46 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
2015-10-29 Pedro Alves <palves@redhat.com>
+ * common/vec.h (DEF_VEC_FUNC_P) [iterate]: Cast 0 to type T.
+
+2015-10-29 Pedro Alves <palves@redhat.com>
+
* guile/scm-frame.c (gdbscm_unwind_stop_reason_string): Add cast.
2015-10-29 Eli Zaretskii <eliz@gnu.org>
diff --git a/gdb/common/vec.h b/gdb/common/vec.h
index 2564485..6189283 100644
--- a/gdb/common/vec.h
+++ b/gdb/common/vec.h
@@ -573,7 +573,7 @@ static inline int VEC_OP (T,iterate) \
} \
else \
{ \
- *ptr = 0; \
+ *ptr = (T) 0; \
return 0; \
} \
} \