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expr is now cast to void in THROWS family of assertions.

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This prevents Clang from complaining about unused value in expressions
containing explicit casts used in the THROW assertion macro family.

Example:
`REQUIRE_THROWS_AS(static_cast<bool>(object), std::bad_cast);` would
trigger `-Wunused-value` warning. Now it does not.

Credits to Arto Bendiken, who submitted a PR almost 3 years ago, but his
branch has since died and I was unable to merge it.
This commit is contained in:
Martin Hořeňovský 2017-01-31 18:02:11 +01:00
parent 7ae96c710b
commit 0dabd951ba
1 changed files with 3 additions and 3 deletions
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6
include/internal/catch_capture.hpp
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@ -58,7 +58,7 @@
do { \
Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition ); \
try { \
expr; \
static_cast<void>(expr); \
__catchResult.captureResult( Catch::ResultWas::Ok ); \
} \
catch( ... ) { \
@ -73,7 +73,7 @@
Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition, #matcher ); \
if( __catchResult.allowThrows() ) \
try { \
expr; \
static_cast<void>(expr); \
__catchResult.captureResult( Catch::ResultWas::DidntThrowException ); \
} \
catch( ... ) { \
@ -90,7 +90,7 @@
Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition ); \
if( __catchResult.allowThrows() ) \
try { \
expr; \
static_cast<void>(expr); \
__catchResult.captureResult( Catch::ResultWas::DidntThrowException ); \
} \
catch( exceptionType ) { \