diff options
Diffstat (limited to 'gdb/doc/gdb.texinfo')
| -rw-r--r-- | gdb/doc/gdb.texinfo | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index c2dfa17..cfb2cdb 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -8324,11 +8324,24 @@ $4 = 0 @end smallexample @cindex C@t{++} scope resolution -These uses of @samp{::} are very rarely in conflict with the very similar -use of the same notation in C@t{++}. @value{GDBN} also supports use of the C@t{++} -scope resolution operator in @value{GDBN} expressions. -@c FIXME: Um, so what happens in one of those rare cases where it's in -@c conflict?? --mew +These uses of @samp{::} are very rarely in conflict with the very +similar use of the same notation in C@t{++}. When they are in +conflict, the C@t{++} meaning takes precedence; however, this can be +overridden by quoting the file or function name with single quotes. + +For example, suppose the program is stopped in a method of a class +that has a field named @code{includefile}, and there is also an +include file named @file{includefile} that defines a variable, +@code{some_global}. + +@smallexample +(@value{GDBP}) p includefile +$1 = 23 +(@value{GDBP}) p includefile::some_global +A syntax error in expression, near `'. +(@value{GDBP}) p 'includefile'::some_global +$2 = 27 +@end smallexample @cindex wrong values @cindex variable values, wrong |