Henderson, C.D.M., 2004, Efficient string concatenation using expression templates, , C/C++ Users Journal, article in press

Henderson, C.D.M., 2004, Optional Storage, C/C++ Users Journal 22(5), article in press

Henderson, C.D.M., 2002, Ready-to-run C++, Available online only

Henderson, C.D.M., 1989, Dragon Monitor, Dragon User, 69: January 1989

Henderson, C.D.M., 1988, Dragon Invoicer, Dragon User, 64: August 1988

Efficient string concatenation using expression templates
C/C++ Users Journal, Volume & Issue TBD
Craig D.M. Henderson
Authored February 2004, Accepted February 2004

Expression templates are a powerful technique for delayed evaluation of expression. In this article, I use expression templates to make optimising string concatenation by taking advantage of the delay and allocating just one buffer that is large enough to contain the string that results from the entire expression. The expression is evaluated only when it is assigned to a basic_string object, so if the expression is never assigned, then the expression is never evaluated. This is contrary to the normal behaviour that would create a host of temporary strings and then just throw them away.

Keywords: C++ development; template; generic programming; expression templates

Optional Storage
C/C++ Users Journal, Volume 22, Number 5. May 2004
Craig D.M. Henderson
Authored April 2003, Accepted September 2003

Keywords: C++, template, memory optimization

Automated identification of the orientation of mediolateral oblique mammographic images
Craig D.M. Henderson
University of the West of England, Bristol
Authored August 2003, Revised October 2003

When comparing mammogram images, whether temporal, bilateral or otherwise, it is essential that the orientation of the breasts in each image match. This initial image orientation problem is generally omitted from the registration procedure and left to the operator to provide the x-ray images in the order and orientation that the software system requires. In a fully automated system, this is an unacceptable burden on the system operator. This paper describes an algorithmic procedure for identifying the orientation of mediolateral oblique (MLO) breast images that can be used as a first step in the process of mammogram registration in an automated system.

Keywords: mammogram; image analysis; image orientation

Ready to Run C++
Craig D.M. Henderson
March 2002

Traditional compiler techniques centre on individual source files in their entirety to form a compilation unit. This requires the entire unit to be recompiled any of its dependent files have been modified, regardless of the nature of the change. This paper discusses how things could be improved.

Keywords: software development environment, background compilation

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