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Full Discussion: String Constant C
Top Forums Programming String Constant C Post 302850185 by bigearsbilly on Wednesday 4th of September 2013 06:00:01 AM
Old 09-04-2013
Yes they are embedded in the code, if you do a strings(1) on your program you will see them.
 
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XSTR(1) 						      General Commands Manual							   XSTR(1)

NAME
xstr - extract strings from C programs to implement shared strings SYNOPSIS
xstr [ -c ] [ - ] [ file ] DESCRIPTION
Xstr maintains a file strings into which strings in component parts of a large program are hashed. These strings are replaced with refer- ences to this common area. This serves to implement shared constant strings, most useful if they are also read-only. The command xstr -c name will extract the strings from the C source in name, replacing string references by expressions of the form (&xstr[number]) for some number. An appropriate declaration of xstr is prepended to the file. The resulting C text is placed in the file x.c, to then be compiled. The strings from this file are placed in the strings data base if they are not there already. Repeated strings and strings which are suffices of existing strings do not cause changes to the data base. After all components of a large program have been compiled a file xs.c declaring the common xstr space can be created by a command of the form xstr This xs.c file should then be compiled and loaded with the rest of the program. If possible, the array can be made read-only (shared) sav- ing space and swap overhead. Xstr can also be used on a single file. A command xstr name creates files x.c and xs.c as before, without using or affecting any strings file in the same directory. It may be useful to run xstr after the C preprocessor if any macro definitions yield strings or if there is conditional code which contains strings which may not, in fact, be needed. Xstr reads from its standard input when the argument `-' is given. An appropriate command sequence for running xstr after the C preprocessor is: cc -E name.c | xstr -c - cc -c x.c mv x.o name.o Xstr does not touch the file strings unless new items are added, thus make can avoid remaking xs.o unless truly necessary. FILES
strings Data base of strings x.c Massaged C source xs.c C source for definition of array `xstr' /tmp/xs* Temp file when `xstr name' doesn't touch strings SEE ALSO
mkstr(1) BUGS
If a string is a suffix of another string in the data base, but the shorter string is seen first by xstr both strings will be placed in the data base, when just placing the longer one there will do. 3rd Berkeley Distribution May 7, 1986 XSTR(1)

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