Fix a latent bug in print_wchar

print_wchar keeps track of when escape sequences are emitted, to force
an escape sequence if needed by a subsequent character.  For example
for the string concatenation "\0" "1", gdb will print "\000\061" --
because printing "\0001" might be confusing.

However, this code has two errors.  First, this logic is not needed
for octal escapes, because there is a length limit of 3 for octal
escapes, and gdb always prints these with "%.3o".  Second, though,
this *is* needed for hex escapes, because those do not have a length
limit.

This patch fixes these problems and adds the appropriate tests.

1 files changed, 2 insertions, 2 deletions

diff --git a/gdb/gdb_wchar.h b/gdb/gdb_wchar.h
index ba5baf3..8c6e4fc 100644
--- a/gdb/gdb_wchar.h
+++ b/gdb/gdb_wchar.h
@@ -66,7 +66,7 @@ typedef wint_t gdb_wint_t;
 
 #define gdb_wcslen wcslen
 #define gdb_iswprint iswprint
-#define gdb_iswdigit iswdigit
+#define gdb_iswxdigit iswxdigit
 #define gdb_btowc btowc
 #define gdb_WEOF WEOF
 
@@ -103,7 +103,7 @@ typedef int gdb_wint_t;
 
 #define gdb_wcslen strlen
 #define gdb_iswprint isprint
-#define gdb_iswdigit isdigit
+#define gdb_iswxdigit isxdigit
 #define gdb_btowc /* empty */
 #define gdb_WEOF EOF