03-16-2009
Backtracing with shell script
I have a text file test.txt which contains :
inst_f1
inst_f2
inst_f3
inst_f4
.
.
.
.
inst_fn
where inst_f1.... inst_fn are particular function type used in a given cpp file
I have to read the file test.txt line by line
Suppose the First fn is inst_f1. I have to find the fn in which this fn is called from the cpp
and so on
for eg: the contents of cpp file are
void clas_name :: rvvd_inst_into_tabl
( void )
{
rvvd_call_tabl()
}
void clas_name :: rvvd_call_tabl
( void )
{
rvvd_chck_tabl()
}
void clas_name :: rvvd_chck_tabl
( void )
{
inst_f1()
}
So the flow would be
inst_f1 <<--- rvvd_chck_tabl <<---- rvvd_call_tabl <<----- rvvd_inst_into_tabl
and I have to keep all things dynamic ie ( Number of Fncs in test.txt will change for diff cpp class)
Your Suggestions appreciated
Thanks
-Ultimatix
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LEARN ABOUT NETBSD
__concat
__CONCAT(3) BSD Library Functions Manual __CONCAT(3)
NAME
__CONCAT, __STRING -- argument substitution
SYNOPSIS
#include <sys/cdefs.h>
xy
__CONCAT(x, y);
const char *
__STRING(x);
DESCRIPTION
The __CONCAT macro makes use of the cpp(1) preprocessor to concatenate two tokens. When the macro is expanded, x and y are combined into a
single token, provided that the result forms a valid token; two tokens that together do not form a valid token can not be concatenated. This
is known as ``token concatenation'' or ``token pasting''.
The __STRING() macro uses the conventional '#' preprocessing operator to replace the argument x with a string literal. This is also known as
``stringification''.
EXAMPLES
The following two printf(3) calls produce the same output:
#define Net 0x01
#define BSD 0x02
#define NetBSD "NetBSD"
(void)printf("%s
", __CONCAT(Net, BSD));
(void)printf("%s%s
", __STRING(Net), __STRING(BSD));
SEE ALSO
cpp(1), cdefs(3)
HISTORY
The __CONCAT() and __STRING() macros first appeared in NetBSD 1.3.
CAVEATS
Many small details direct the proper use of the macros. For example, while all leading and trailing whitespace is ignored when __STRING() is
used, it is undefined whether cpp(1) puts white space between the tokens when __CONCAT() is used. It can be also noted that the C preproces-
sor converts all comments to whitespace before any macros are even considered. The use of either macro is discouraged in complex constructs.
BSD
December 16, 2010 BSD