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29 lines
974 B
Markdown
29 lines
974 B
Markdown
# gcov
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> Code coverage analysis and profiling tool that discovers untested parts of a program.
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> Also displays a copy of source code annotated with execution frequencies of code segments.
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> More information: <https://gcc.gnu.org/onlinedocs/gcc/Invoking-Gcov.html>.
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- Generate a coverage report named `file.cpp.gcov`:
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`gcov {{path/to/file.cpp}}`
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- Write individual execution counts for every basic block:
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`gcov {{[-a|--all-blocks]}} {{path/to/file.cpp}}`
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- Write branch frequencies to the output file and print summary information to `stdout` as a percentage:
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`gcov {{[-b|--branch-probabilities]}} {{path/to/file.cpp}}`
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- Write branch frequencies as the number of branches taken, rather than the percentage:
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`gcov {{[-c|--branch-counts]}} {{path/to/file.cpp}}`
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- Do not create a `gcov` output file:
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`gcov {{[-n|--no-output]}} {{path/to/file.cpp}}`
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- Write file level as well as function level summaries:
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`gcov {{[-f|--function-summaries]}} {{path/to/file.cpp}}`
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