CTREE(1)CTREE(1)NAMEctree - print C function-call trees
SYNOPSISctree [-nqFGMST] [-i indent] [-l level] [-c columns] [-t tagpath]
[functions...]
DESCRIPTION
Ctree uses the tags file produced by ctags(1) to print a display of the
calling hierarchy in C programs. This can be used as a ``road map''
for browsing large or unfamiliar software systems. If no functions are
given, all uncalled functions in the tags file (like main) are used.
Options provide control over formatting. Default output looks like
this:
Mptags(){ Case# Default#
Error(){ Quiet Status }
Int# Quiet^ Quote Status^ Verbose
doTag(){
FindTag(){ Error^
SearchTagsFile(){ Error^ }
null# tagpath
}
}
...
}
Mptags is the main function in a file called ptags.c. Functions -
Mptags, Error, doTag, etc - are marked with parenthesis (). Macros -
Case, Define, Int, etc - are marked with a pound sign #. A circumflex
^ means a symbol has appeared earlier in the listing (so functions are
only enumerated once). Unmarked symbols - Quiet, Status, etc - are
global variables. Indentation and curly braces show the calling
hierarchy; thus, doTag calls FindTag, which calls Error,
SearchTagsFile, null, and tagpath.
OPTIONS-n put each symbol on a new line, instead of the compact form
above.
-FGMST suppress printing of functions, globals, macros, structs, or
typedefs, respectively.
-q quiet - don't print the type labels (#, ()).
-c columns
wrap lines greater than columns wide (default=80).
-i indent
Use indent as the indentation string (three spaces is the
default).
-l level
limit the depth of the tree to level.
-t tagpath
set the path of tag files searched to tagpath (the default is
$TAGS, or failing that, tags).
DIAGNOSTICS
Exits with status 1 if nothing was printed.
FILES
tags tags file used
SEE ALSOctags(1), ptags(1), cman(1)AUTHOR
Michael Hawley
4th Berkeley Distribution May 30 1985 CTREE(1)
