Fix std::getopts::opts_present() to check value. #5329
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Currently the opts_present() function only checks to see if the option is
configured in the match, but doesn't actually check to see if the option
value has been set. This means that opt_present('h') may return false while
opts_present([~'h']) returns true.
Add a test case to catch this condition and fix opts_present() to check
the value before returning true.
Note, there is another API difference between these two functions that this
does not address. Currently if you pass a non-configured option to
opt_present() the program will fail!(), but opts_present() simply returns
false. If it is acceptable to standardize on the fail!() then opts_present()
should probably be implemented in terms of the opt_present() function.
|
Sounds good. I can pursue using conditions in a separate pull request. Would you like all Thanks. |
bors
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Mar 12, 2013
…ydon
Currently the opts_present() function only checks to see if the option is
configured in the match, but doesn't actually check to see if the option
value has been set. This means that opt_present('h') may return false while
opts_present([~'h']) returns true.
Add a test case to catch this condition and fix opts_present() to check
the value before returning true.
Note, there is another API difference between these two functions that this
does not address. Currently if you pass a non-configured option to
opt_present() the program will fail!(), but opts_present() simply returns
false. If it is acceptable to standardize on the fail!() then opts_present()
should probably be implemented in terms of the opt_present() function.
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
May 2, 2020
…flip1995 integer_arithmetic: detect integer arithmetic on references. changelog: integer_arithmetic fix false negatives with references on integers Fixes rust-lang#5328
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Currently the opts_present() function only checks to see if the option is
configured in the match, but doesn't actually check to see if the option
value has been set. This means that opt_present('h') may return false while
opts_present([~'h']) returns true.
Add a test case to catch this condition and fix opts_present() to check
the value before returning true.
Note, there is another API difference between these two functions that this
does not address. Currently if you pass a non-configured option to
opt_present() the program will fail!(), but opts_present() simply returns
false. If it is acceptable to standardize on the fail!() then opts_present()
should probably be implemented in terms of the opt_present() function.