`OPT__COLOR(&int_var, description)`::
Add `\--color[=<when>]` and `--no-color`.
-`OPT__DRY_RUN(&int_var)`::
+`OPT__DRY_RUN(&int_var, description)`::
Add `-n, \--dry-run`.
-`OPT__QUIET(&int_var)`::
+`OPT__FORCE(&int_var, description)`::
+ Add `-f, \--force`.
+
+`OPT__QUIET(&int_var, description)`::
Add `-q, \--quiet`.
-`OPT__VERBOSE(&int_var)`::
+`OPT__VERBOSE(&int_var, description)`::
Add `-v, \--verbose`.
`OPT_GROUP(description)`::
If not stated otherwise, interpret the arguments as follows:
* `short` is a character for the short option
- (e.g. `\'e\'` for `-e`, use `0` to omit),
+ (e.g. `{apostrophe}e{apostrophe}` for `-e`, use `0` to omit),
* `long` is a string for the long option
(e.g. `"example"` for `\--example`, use `NULL` to omit),
The callback mechanism is as follows:
* Inside `func`, the only interesting member of the structure
- given by `opt` is the void pointer `opt->value`.
- `\*opt->value` will be the value that is saved into `var`, if you
+ given by `opt` is the void pointer `opt\->value`.
+ `\*opt\->value` will be the value that is saved into `var`, if you
use `OPT_CALLBACK()`.
- For example, do `*(unsigned long *)opt->value = 42;` to get 42
+ For example, do `*(unsigned long *)opt\->value = 42;` to get 42
into an `unsigned long` variable.
* Return value `0` indicates success and non-zero return