| 1 | // Boost integer/static_min_max.hpp header file ----------------------------// |
|---|
| 2 | |
|---|
| 3 | // (C) Copyright Daryle Walker 2001. |
|---|
| 4 | // Distributed under the Boost Software License, Version 1.0. (See |
|---|
| 5 | // accompanying file LICENSE_1_0.txt or copy at |
|---|
| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
|---|
| 7 | |
|---|
| 8 | // See http://www.boost.org for updates, documentation, and revision history. |
|---|
| 9 | |
|---|
| 10 | #ifndef BOOST_INTEGER_STATIC_MIN_MAX_HPP |
|---|
| 11 | #define BOOST_INTEGER_STATIC_MIN_MAX_HPP |
|---|
| 12 | |
|---|
| 13 | #include <boost/integer_fwd.hpp> // self include |
|---|
| 14 | |
|---|
| 15 | #include <boost/config.hpp> // for BOOST_STATIC_CONSTANT |
|---|
| 16 | |
|---|
| 17 | |
|---|
| 18 | namespace boost |
|---|
| 19 | { |
|---|
| 20 | |
|---|
| 21 | |
|---|
| 22 | // Compile-time extrema class declarations ---------------------------------// |
|---|
| 23 | // Get the minimum or maximum of two values, signed or unsigned. |
|---|
| 24 | |
|---|
| 25 | template < long Value1, long Value2 > |
|---|
| 26 | struct static_signed_min |
|---|
| 27 | { |
|---|
| 28 | BOOST_STATIC_CONSTANT( long, value = (Value1 > Value2) ? Value2 : Value1 ); |
|---|
| 29 | }; |
|---|
| 30 | |
|---|
| 31 | template < long Value1, long Value2 > |
|---|
| 32 | struct static_signed_max |
|---|
| 33 | { |
|---|
| 34 | BOOST_STATIC_CONSTANT( long, value = (Value1 < Value2) ? Value2 : Value1 ); |
|---|
| 35 | }; |
|---|
| 36 | |
|---|
| 37 | template < unsigned long Value1, unsigned long Value2 > |
|---|
| 38 | struct static_unsigned_min |
|---|
| 39 | { |
|---|
| 40 | BOOST_STATIC_CONSTANT( unsigned long, value |
|---|
| 41 | = (Value1 > Value2) ? Value2 : Value1 ); |
|---|
| 42 | }; |
|---|
| 43 | |
|---|
| 44 | template < unsigned long Value1, unsigned long Value2 > |
|---|
| 45 | struct static_unsigned_max |
|---|
| 46 | { |
|---|
| 47 | BOOST_STATIC_CONSTANT( unsigned long, value |
|---|
| 48 | = (Value1 < Value2) ? Value2 : Value1 ); |
|---|
| 49 | }; |
|---|
| 50 | |
|---|
| 51 | |
|---|
| 52 | } // namespace boost |
|---|
| 53 | |
|---|
| 54 | |
|---|
| 55 | #endif // BOOST_INTEGER_STATIC_MIN_MAX_HPP |
|---|