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0b993d7436
When compiling our codebase with clang we were getting the following
error:
GSL/tests/algorithm_tests.cpp:198:58: warning: catch handler catches by
value; should catch by reference instead
[misc-throw-by-value-catch-by-reference]
CHECK_THROWS_AS(copy(src_span_dyn, dst_span_static), fail_fast);
^
Looking at the catch source code exceptions were being caught by value.
One could have it designed so that users might say:
CHECK_THROWS_AS(copy(src_span_dyn, dst_span_static), fail_fast&);
But I don't think this is the intent and looking at the Catch tests
itself looks like this macro does not expect the reference:
REQUIRE_THROWS_AS( thisThrows(), std::domain_error );
CHECK_THROWS_AS( thisDoesntThrow(), std::domain_error );
This commit makes Catch catch exceptions by reference instead of by
value.