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CGAL 6.0 - Number Types
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#include <CGAL/utils_classes.h>
Not all values of a type need to be valid.
The function object class Is_valid checks this.
For example, an expression like NT(0)/NT(0) can result in an invalid number. Routines may have as a precondition that all values are valid.
AdaptableFunctor Operations | |
| bool | operator() (const T &x) |
| returns if the argument is valid. | |