ctest_coverage Perform the CTest Coverage Step as a Dashboard Client. ctest_coverage([BUILD <build-dir>] [APPEND]
               [LABELS <label>...]
               [RETURN_VALUE <result-var>]
               [QUIET]
               )
 Collect coverage tool results and stores them in Coverage.xml for submission with the ctest_submit() command. The options are:  
BUILD <build-dir>  Specify the top-level build directory. If not given, the CTEST_BINARY_DIRECTORY variable is used. 
APPEND  Mark results for append to those previously submitted to a dashboard server since the last ctest_start() call. Append semantics are defined by the dashboard server in use. 
LABELS  Filter the coverage report to include only source files labeled with at least one of the labels specified. 
RETURN_VALUE <result-var>  Store in the <result-var> variable 0 if coverage tools ran without error and non-zero otherwise. 
QUIET  Suppress any CTest-specific non-error output that would have been printed to the console otherwise. The summary indicating how many lines of code were covered is unaffected by this option. 

    
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