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(diff.info.gz) C Function Headings

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 Showing C Function Headings
 ...........................
 
    To show in which functions differences occur for C and similar
 languages, you can use the `-p' or `--show-c-function' option.  This
 option automatically defaults to the context output format (
 Context Format), with the default number of lines of context.  You
 can override that number with `-C LINES' elsewhere in the command line.
 You can override both the format and the number with `-U LINES'
 elsewhere in the command line.
 
    The `-p' and `--show-c-function' options are equivalent to `-F
 '^[[:alpha:]$_]'' if the unified format is specified, otherwise `-c -F
 '^[[:alpha:]$_]'' ( Specified Headings).  GNU `diff' provides
 them for the sake of convenience.
 
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