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README.md
| ... | ... | @@ -52,6 +52,17 @@ exception will be thrown. |
| 52 | 52 | Note that the result of `options.parse` should only be used as long as the |
| 53 | 53 | `options` object that created it is in scope. |
| 54 | 54 | |
| 55 | +## Exceptions | |
| 56 | + | |
| 57 | +Exceptional situations throw C++ exceptions. There are two types of | |
| 58 | +exceptions: errors defining the options, and errors when parsing a list of | |
| 59 | +arguments. All exceptions derive from `cxxopts::OptionException`. Errors | |
| 60 | +defining options derive from `cxxopts::OptionSpecException` and errors | |
| 61 | +parsing arguments derive from `cxxopts::OptionParseException`. | |
| 62 | + | |
| 63 | +All exceptions define a `what()` function to get a printable string | |
| 64 | +explaining the error. | |
| 65 | + | |
| 55 | 66 | ## Help groups |
| 56 | 67 | |
| 57 | 68 | Options can be placed into groups for the purposes of displaying help messages. |
| ... | ... | @@ -116,4 +127,3 @@ expressions. For example GCC >= 4.9 or clang with libc++. |
| 116 | 127 | # TODO list |
| 117 | 128 | |
| 118 | 129 | * Allow unrecognised options. |
| 119 | -* Various help strings. | ... | ... |