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This type holds a integer in the range [MIN, MAX]. It will throw a
std::out_of_range exception for any operation which would
result in assigning an integer value outside of this range.
| Parameter | Requirements | Description |
|---|---|---|
MIN |
must be a positive integer literal | The minimum integer value that this type may hold |
MAX |
must be a positive integer literal | The maximum integer value that this type may hold |
|
MIN < MAX |
The usage of this type in an arithmetic expression with another unsigned type will result in another unsigned type fulfilling the Numeric concept. This will be the smallest unsigned integer type of sufficient size to hold the result of the operation.
#include <safe/numeric/safe_range.hpp>
void f(){
boost::numeric::safe_unsigned_range<7, 24> i;
i = 0; // throws out_of_range exception
i = 9; // ok
i *= 9; // throws out_of_range exception
i = -1; // throws out_of_range exception
std::uint8_t j = 4;
auto k = i + j;
// since i can vary between 7 and 24 and j can vary between 0 and 255
// the smallest unsigned integer which can hold the result std::uint16_t
// j will be of type std::uint16_t
}