Optional value. More...
#include <option.hh>
Public Member Functions | |
bool | operator() (void) const |
const Val & | some (void) const |
Val & | some (void) |
Static Public Member Functions | |
static Option< Val > | none (void) |
static Option< Val > | some (const Val &v) |
Optional value.
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inline |
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inline |
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inline |
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inlinestatic |