08-30-2007
libraries
I am slowly ploughing my way through the list of links to on-line tutorials you provided to newbies. I for one am grateful for such a comprehensive list, so first of all thank you for that.
What i cannot seem to find, is information on C++ libraries:
The two links on libraries in your list are dead
But apart from that, in general, there seems to be some sort of information "gap" when it comes to explaining how to apply using the C++ that you have just learned with the various libraries available on the system.
I mean i hope you can understand what i mean: You learn about operators, variables, while loops, if-thens, for-loops, structs, classes and templates, but then... you need to know about libraries and how to apply them; and as far as i can see there is very little information on how to do that because everyone is far too busy talking about operators, variables, while loops, if-thens etc etc...
I have all these related newbie type questions which i still can't seem to answer:
On the system, where are the libraries?
How can i found out what they are for?
How can i find out how to apply these libraries in my programs?
Are there tutorials on the web somewhere that covers using STL and the other libraries?
What are the other libraries?
Hopefully thats not too many questions
and hopefully you can help me out
cheers
pk
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LEARN ABOUT SUSE
ldconfig
LDCONFIG(8) Linux Programmer's Manual LDCONFIG(8)
NAME
/sbin/ldconfig - configure dynamic linker run-time bindings
SYNOPSIS
/sbin/ldconfig [ -nNvXV ] [ -f conf ] [ -C cache ] [ -r root ] directory ...
/sbin/ldconfig -l [ -v ] library ...
/sbin/ldconfig -p
DESCRIPTION
ldconfig creates the necessary links and cache to the most recent shared libraries found in the directories specified on the command line,
in the file /etc/ld.so.conf, and in the trusted directories (/lib and /usr/lib). The cache is used by the run-time linker, ld.so or ld-
linux.so. ldconfig checks the header and filenames of the libraries it encounters when determining which versions should have their links
updated.
ldconfig will attempt to deduce the type of ELF libs (i.e., libc5 or libc6/glibc) based on what C libs, if any, the library was linked
against.
Some existing libs do not contain enough information to allow the deduction of their type. Therefore, the /etc/ld.so.conf file format
allows the specification of an expected type. This is only used for those ELF libs which we can not work out. The format is
"dirname=TYPE", where TYPE can be libc4, libc5, or libc6. (This syntax also works on the command line.) Spaces are not allowed. Also see
the -p option. ldconfig should normally be run by the superuser as it may require write permission on some root owned directories and
files.
OPTIONS
-v Verbose mode. Print current version number, the name of each directory as it is scanned, and any links that are created. Overrides
quiet mode.
-n Only process directories specified on the command line. Don't process the trusted directories (/lib and /usr/lib) nor those speci-
fied in /etc/ld.so.conf. Implies -N.
-N Don't rebuild the cache. Unless -X is also specified, links are still updated.
-X Don't update links. Unless -N is also specified, the cache is still rebuilt.
-f conf
Use conf instead of /etc/ld.so.conf.
-C cache
Use cache instead of /etc/ld.so.cache.
-r root
Change to and use root as the root directory.
-l Library mode. Manually link individual libraries. Intended for use by experts only.
-p Print the lists of directories and candidate libraries stored in the current cache.
FILES
/lib/ld.so run-time linker/loader
/etc/ld.so.conf File containing a list of colon, space, tab, newline, or comma-separated directories in which to search for libraries.
/etc/ld.so.cache File containing an ordered list of libraries found in the directories specified in /etc/ld.so.conf, as well as those
found in /lib and /usr/lib.
SEE ALSO
ldd(1), ld.so(8)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2009-04-15 LDCONFIG(8)