Exceptions in SVN++.
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Exceptions in SVN++.
Exceptions in SVN++
SVN++ uses exceptions for the following purposes:
- Reporting memory allocation failure; where Subversion's default hehaviour is to abort when an allocation from an APR pool fails, SVN++ throws an exception instead.
- Reporting errors; Subversion's error messages are wrapped in exceptions.
- Reporting cancelled operations; an operation that was cancelled from user code will report this by throwing a specific exception type.
- Terminating iteration; user-level callbacks may throw a specific exception type to cancel an ongoing operation that is generating the callback messages. Other exceptions from user-level callbacks will be propagated back to the calling application.
The SVN++ implementation will also throw standard exceptions when appropriate. Their use is documented in the relevant modules.
Exception Hierarchy
All SVN++ exceptions are ultimately derived from std::exception
.