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charset.c: fix -Wpointer-sign 

$ make WERROR_CFLAGS="-Wpointer-sign -Werror" charset.o 2>&1 1>/dev/null
../../src/gdb/charset.c: In function ‘wchar_iterate’:
../../src/gdb/charset.c:665:13: error: pointer targets in assignment differ in signedness [-Werror=pointer-sign]
../../src/gdb/charset.c:691:13: error: pointer targets in assignment differ in signedness [-Werror=pointer-sign]
../../src/gdb/charset.c:706:12: error: pointer targets in assignment differ in signedness [-Werror=pointer-sign]

The encoding conversion code works with gdb_byte arrays as the generic
buffers that hold strings of any encoding/width.  Changing the type of
this field to gdb_byte* removes the need for one cast, and makes
everything work with the same types.  That's good -- WRT to strings,
"char *" is (almost) consistently throughout GDB only used for
ascii-ish strings.

gdb/
2013-03-07  Pedro Alves  <palves@redhat.com>

	* charset.c (struct wchar_iterator) <input>: Change type to 'const
	gdb_byte *'.
	(make_wchar_iterator): Remove cast to char*.
	(wchar_iterate): Change type of local.
This commit is contained in:
Pedro Alves 2013-03-07 19:10:46 +00:00
parent a09b444817
commit 2898e56054
2 changed files with 10 additions and 3 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2013-03-07 Pedro Alves <palves@redhat.com>
* charset.c (struct wchar_iterator) <input>: Change type to 'const
gdb_byte *'.
(make_wchar_iterator): Remove cast to char*.
(wchar_iterate): Change type of local.
2013-03-07 Pedro Alves <palves@redhat.com>
* regcache.c (regcache_xmalloc_1): Call XCALLOC with signed char

6
gdb/charset.c
View File

@ -571,7 +571,7 @@ struct wchar_iterator
iconv_t desc;
/* The input string. This is updated as convert characters. */
char *input;
const gdb_byte *input;
/* The number of bytes remaining in the input. */
size_t bytes;
@ -597,7 +597,7 @@ make_wchar_iterator (const gdb_byte *input, size_t bytes,
result = XNEW (struct wchar_iterator);
result->desc = desc;
result->input = (char *) input;
result->input = input;
result->bytes = bytes;
result->width = width;
@ -641,7 +641,7 @@ wchar_iterate (struct wchar_iterator *iter,
while (iter->bytes > 0)
{
char *outptr = (char *) &iter->out[0];
char *orig_inptr = iter->input;
const gdb_byte *orig_inptr = iter->input;
size_t orig_in = iter->bytes;
size_t out_avail = out_request * sizeof (gdb_wchar_t);
size_t num;