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dft_tools/doc/reference/c++/utilities/exceptions.rst
Olivier Parcollet 3fe400d34c doc : split c++ code from rst
- examples split from the rst file using a python script (split_code).
- Final result for the doc is unchanged.
- examples are compiled and tested with the other tests.
- examples' code have been clang-formatted, with triqs style.
- doc compiles much faster, and with the same options as the rest of the
  test.
- examples are added as tests, so they are run by make test, as simple C
  tests.
- done for the tutorials and the reference.
- autocompile removed (changed into triqs_example directive).
- add triqs_example :
   - make a literal include of the source code.
   - runs the compiled example
   - add, as before, the result to the source code in the doc.
- added the script split_code, used to make the changes automatically,
  maybe for later reuse. (in _tools)
2014-05-31 23:00:16 +02:00

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.. highlight:: c
.. _util_exceptions:
Exceptions
=============
TRIQS defines special exceptions, with the following characteristics :
* they derives from std::exceptions
* their .what() contains :
* the file and line where the exception occurred
* an additionnal error message (see example below). The error behaves like a std::stringstream,
one can accumulate any message
* a complete stack strace of the C++ code at the exception point, with demangling of the function name (on gcc and clang).
.. warning::
For uniformity, it is highly recommended to use these macros when developing for TRIQS.
Example :
.. triqs_example:: ./exceptions_0.cpp
The exception can of course be caught :
.. triqs_example:: ./exceptions_1.cpp