12-29-2008
Why can't p(in gdb) show the values of some varialbes?
It failed to show the values of some variables. but actually these are general-sense varialbes. They should be in current context and alsolutely not in comments.
After the execution of the related statements, those variables are changed and can be used in the continuing code.
Please teach me. Thanks
Samples:
(gdb) p *ghy->tee-tree
No symbol "ghy" in current context.
(gdb)
224
(gdb) p rand
$3 = {<text variable, no debug info>} 0x3aebe33ce0 <rand>
(gdb) p *rand
$4 = {<text variable, no debug info>} 0x3aebe33ce0 <rand>
A similer sample: what does it mean using 'value optimized out'?
<value optimized out>
Last edited by cdbug; 12-29-2008 at 06:43 PM..
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NEXT(1) [nmh-1.5] NEXT(1)
NAME
next - show the next message
SYNOPSIS
next [+folder] [-showproc program] [-showmimeproc program] [-header | -noheader] [-checkmime | -nocheckmime] [switches for showproc or
showmimeproc] [-version] [-help]
DESCRIPTION
Next performs a show on the next message in the specified (or current) folder. Like show, it passes any switches on to the program show-
proc or showmimeproc, which is called to list the message. This command is almost exactly equivalent to "show next". Consult the manual
entry for show(1) for all the details.
FILES
$HOME/.mh_profile The user profile
PROFILE COMPONENTS
Path: To determine the user's nmh directory
Current-Folder: To find the default current folder
showproc: Program to show non-MIME messages
showmimeproc: Program to show MIME messages
SEE ALSO
show(1), prev(1)
DEFAULTS
`+folder' defaults to the current folder
`-checkmime'
`-header'
CONTEXT
If a folder is specified, it will become the current folder. The message that is shown (i.e., the next message in sequence) will become
the current message.
BUGS
next is really a link to the show program. As a result, if you make a link to next and that link is not called next, your link will act
like show instead. To circumvent this, add a profile-entry for the link to your nmh profile and add the argument next to the entry.
MH.6.8 11 June 2012 NEXT(1)