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Update docs to match code.

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[SVN r63409]
This commit is contained in:
John Maddock
2010-06-28 15:59:21 +00:00
committed by Peter Dimov
parent f194e652ab
commit 95a4f1e235
1 changed files with 20 additions and 12 deletions
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32
doc/gcd/math-gcd.qbk
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@ -44,10 +44,12 @@ programming problems.
IntegerType gcd( IntegerType const &a, IntegerType const &b ); IntegerType gcd( IntegerType const &a, IntegerType const &b );
template < typename IntegerType > template < typename IntegerType >
IntegerType lcm( IntegerType const &a, IntegerType const &b ); IntegerType lcm( IntegerType const &a, IntegerType const &b );
typedef ``['see-below]`` static_gcd_type;
template < unsigned long Value1, unsigned long Value2 > template < static_gcd_type Value1, static_gcd_type Value2 >
struct static_gcd; struct static_gcd;
template < unsigned long Value1, unsigned long Value2 > template < static_gcd_type Value1, static_gcd_type Value2 >
struct static_lcm; struct static_lcm;
} }
@ -145,25 +147,31 @@ gcd_evaluator and lcm_evaluator class templates, respectively.
[*Header: ] [@../../../../../boost/math/common_factor_ct.hpp <boost/math/common_factor_ct.hpp>] [*Header: ] [@../../../../../boost/math/common_factor_ct.hpp <boost/math/common_factor_ct.hpp>]
template < unsigned long Value1, unsigned long Value2 > typedef ``['unspecified]`` static_gcd_type;
struct boost::math::static_gcd
template < static_gcd_type Value1, static_gcd_type Value2 >
struct boost::math::static_gcd : public mpl::integral_c<static_gcd_type, implementation_defined>
{ {
static unsigned long const value = implementation_defined;
}; };
template < unsigned long Value1, unsigned long Value2 > template < static_gcd_type Value1, static_gcd_type Value2 >
struct boost::math::static_lcm struct boost::math::static_lcm : public mpl::integral_c<static_gcd_type, implementation_defined>
{ {
static unsigned long const value = implementation_defined;
}; };
The type `static_gcd_type` is the widest unsigned-integer-type that is supported
for use in integral-constant-expressions by the compiler. Usually this
the same type as `boost::uintmax_t`, but may fall back to being `unsigned long`
for some older compilers.
The boost::math::static_gcd and boost::math::static_lcm class templates The boost::math::static_gcd and boost::math::static_lcm class templates
take two value-based template parameters of the unsigned long type take two value-based template parameters of the ['static_gcd_type] type
and have a single static constant data member, value, of that same type. and inherit from the type `boost::mpl::integral_c`.
The value of that member is the greatest common factor or least Inherited from the base class, they have a member /value/
that is the greatest common factor or least
common multiple, respectively, of the template arguments. common multiple, respectively, of the template arguments.
A compile-time error will occur if the least common multiple A compile-time error will occur if the least common multiple
is beyond the range of an unsigned long. is beyond the range of `static_gcd_type`.
[h3 Example] [h3 Example]