Using boost in program created by g++ Post: 302749169

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Top Forums Programming Using boost in program created by g++ Post 302749169 by DGPickett on Thursday 27th of December 2012 05:01:00 PM

12-27-2012

Registered User

Some prefer to do it in two lines, one for .cc.o and one for .o.exe or whatever, so the first also supports code going into libraries, and there is just one place for those options in make definitions.

I usually see the compiler options, -D's, -I's (preprocess is before compile, is before link), the -L right before the -l's it supports, -l's for each linked library and source or local object at the right end. I like to use dynamic linking, so no -L's, just a good LD_LIBRARY_PATH (or whatever your system likes to use, see man ld() for rules).

Sometimes I would -c compile all the .c or .cc into .o and ar them all into one library .a file, as order does not matter within a library, and finally compile with the .a file explicitly only. Only good for one main()! One best practice says put only one subroutine/function in each source file, and then the order is tricky. You can have one .a for each main() and it's "private" functions/methods/subroutines, and then link in any common code libraries.

The -I path must support the entry name or relative path in the source #include's (-I/a/b/c and #include "d/e.h" is for /a/b/c/d/e.h).

Last edited by DGPickett; 12-27-2012 at 06:07 PM..

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split

split(1)						      General Commands Manual							  split(1)

NAME

       split - split a file into pieces

SYNOPSIS

       line_count] suffix_length] [file [name]]

       nsuffix_length] [file [name]]

   Obsolescent
       n] [file [name]]

DESCRIPTION

       reads  file  and  writes  it  in  pieces  (default  1000 lines) onto a set of output files.  The name of the first output file is name with
       appended, and so on lexicographically, up to (only ASCII letters are used, a maximum of 676 files).  If no output name  is  given,  is  the
       default.

       If no input file is given, or if is given instead, the standard input file is used.

   Options
       recognizes the following command-line options and arguments:

	      The input file is split into pieces
			     line_count lines in size.

	      suffix_length  letters  are  used  to  form the suffix of the output filenames.  This option allows creation of more than 676 output
			     files.  The output file names created cannot exceed the maximum file name length allowed in the directory	containing
			     the files.

	      The input file is split into pieces
			     n bytes in size.

	      The input file is split into pieces
			     n x 1024 bytes in size.  No space separates the n from the

	      The input file is split into pieces
			     n x 1048576 bytes in size.  No space separates the n from the

	      The input file is split into pieces
			     n lines in size.  This option is obsolescent and is equivalent to using the option.

EXTERNAL INFLUENCES

   Environment Variables
       determines the locale for the interpretation of text as single- and/or multi-byte characters.

       determines the language in which messages are displayed.

       If  or  is  not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty
       variable.  If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of

       If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are  set  to	"C".   See
       environ(5).

   International Code Set Support
       Single- and multi-byte character code sets are supported.

SEE ALSO

       csplit(1).

STANDARDS CONFORMANCE

																	  split(1)