#27 Check return codes everywhere

open
nobody
devel (22)
5
2012-08-22
2007-03-13
Markus Elfring
No

Some checks for return codes are missing.

Examples:
Would you like to add more error handling for return values from well-known functions like at the following places?
- http://downloads.sourceforge.net/pmt/b2p152s.zip
BMP2PNG.C:
fprintf => usage
fclose => read_file

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