8000 At least one positional argument is required to properly raise an error for unknown optional arguments. · Issue #13 · p-ranav/structopt · GitHub
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At least one positional argument is required to properly raise an error for unknown optional arguments. #13

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agoessling opened this issue Nov 26, 2020 · 0 comments
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At least one positional argument is required to properly raise an error for unknown optional arguments. #13

agoessling opened this issue Nov 26, 2020 · 0 comments
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@agoessling
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If you only have optional arguments in the structure no error will be produced when unknown optional or positional arguments are provided.

struct Options {
  std::optional<std::string> directory;
};
STRUCTOPT(Options, directory);

Executing ./a.out --bad or ./a.out bad will not raise an exception. If you add a positional argument, you will get the expected result.

struct Options {
  std::optional<std::string> directory;
  std::string dummy;
};
STRUCTOPT(Options, directory, dummy);
@p-ranav p-ranav added the bug Something isn't working label Nov 26, 2020
@p-ranav p-ranav self-assigned this Nov 26, 2020
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