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Full Discussion: Qsort Error
Top Forums Programming Qsort Error Post 302926362 by Corona688 on Sunday 23rd of November 2014 04:27:46 PM
Old 11-23-2014
Quote:
Originally Posted by Charles Babbage (1791-1871)
On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question.
It's your job to check input before you put it into qsort.

Quote:
For qsort, if I wanted to check that the algorithm was implemented correctly, what assertions can I put into the code?
That depends entirely on what you are doing and what you are trying to do. Lots of test data is a good start, and a known good sort (perhaps the commandline one) to compare your results to.
 

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uri_urn(n)					    Tcl Uniform Resource Identifier Management						uri_urn(n)

__________________________________________________________________________________________________________________________________________________

NAME
uri_urn - URI utilities, URN scheme SYNOPSIS
package require Tcl 8.2 package require uri::urn ?1.1.2? uri::urn::quote url uri::urn::unquote url _________________________________________________________________ DESCRIPTION
This package provides two commands to quote and unquote the disallowed characters for url using the urn scheme, registers the scheme with the package uri, and provides internal helpers which will be automatically used by the commands uri::split and uri::join of package uri to handle urls using the urn scheme. COMMANDS
uri::urn::quote url This command quotes the characters disallowed by the urn scheme (per RFC 2141 sec2.2) in the url and returns the modified url as its result. uri::urn::unquote url This commands performs the reverse of ::uri::urn::quote. It takes an urn url, removes the quoting from all disallowed characters, and returns the modified urls as its result. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uri of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
rfc 2141, uri, url, urn CATEGORY
Networking uri 1.1.2 uri_urn(n)
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