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Full Discussion: Vector Traversing
Top Forums Programming Vector Traversing Post 302190522 by dhanamurthy on Wednesday 30th of April 2008 12:11:01 AM
Old 04-30-2008
Vector Traversing

Hi
i have the following structure
struct S
{
char Mod_num[5];
char val[31];
char chr_nm_cd[11];
}
I am reading a 2GB file and inserting into the structure and writing into a vector.
I feel like only vector will be a right option. I tried with multimap but it is memory intensive and hence i dropped multimap.
I have the scenario
1st record
7285
GROZ788Y
SIZE 00513
2nd record
7286
GROZ720Y
SIZEA00678
3rd record
7455
GROZ788Y
SIZE 00565
4th record
7286
GROZ788Y
SIZE 00513
You can observe that 1st and 4th records are the same except for the MOd_num field where the values are 7285 and 7286, they are differing
so i will have the output as
SIZE 00513 GROZ788Y 2 7286 7285
SIZEA00678 GROZ720Y 1 7286
SIZE 00565 GROZ788Y 1 7455

Can you give me a sample program or some directions to solve this.
 

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SPLIT(1)							   User Commands							  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [OPTION]... [INPUT [PREFIX]] DESCRIPTION
Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default size is 1000 lines, and default PREFIX is `x'. With no INPUT, or when INPUT is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --suffix-length=N use suffixes of length N (default 2) -b, --bytes=SIZE put SIZE bytes per output file -C, --line-bytes=SIZE put at most SIZE bytes of lines per output file -d, --numeric-suffixes use numeric suffixes instead of alphabetic -l, --lines=NUMBER put NUMBER lines per output file --verbose print a diagnostic just before each output file is opened --help display this help and exit --version output version information and exit SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y. AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. REPORTING BUGS
Report split bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report split translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for split is maintained as a Texinfo manual. If the info and split programs are properly installed at your site, the command info coreutils 'split invocation' should give you access to the complete manual. GNU coreutils 8.5 February 2011 SPLIT(1)
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