On Fri, 5 Jan 2018, Kurt Schwehr wrote:
* Passing char *psz yada all over the place in pure C++ code. A const
std::string is usually not a noticeable expense and is a lot safer
* CPLString when std::string will do just fine. And we can write free
functions to operate on strings. I'm generally bothered by subclassing of
std::string as CPLString. After reading large amounts of C++ code, I think
it adds more confusion than it ever helps over having clean free
functions. Interop and analysis with CPLString's is no fun.
https://stackoverflow.com/questions/6006860/why-should-one-not-derive-from-c-std-string-class
Can you point me to some good examples of good pure C++ code in GDAL
- ideally driver code ? The driver tutorial
http://www.gdal.org/gdal_drivertut.html
is full of pszFilename and other psz variables.
When I taught myself C++ in 1992 std::string did not exist,
and my gdal work is my only C++ practice since 1993.
In my exploration of gdal code I have seen very little use of std::string
and plenty of CPLString; it would be a great help to have good examples to
copy.
--
Andrew C. Aitchison Cambridge, UK
and...@aitchison.me.uk
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