mirror of
https://github.com/boostorg/fusion.git
synced 2025-07-29 20:17:32 +02:00
Documented type deduction for ADAPT_STRUCT_NAMED.
This commit is contained in:
@ -337,10 +337,31 @@ arbitrary struct a model of __random_access_sequence__. The given struct is
|
||||
adapted using the given name.
|
||||
|
||||
[heading Synopsis]
|
||||
BOOST_FUSION_ADAPT_STRUCT_NAMED(
|
||||
struct_name, adapted_name,
|
||||
member_name0,
|
||||
member_name1,
|
||||
member_name2,
|
||||
...
|
||||
)
|
||||
|
||||
BOOST_FUSION_ADAPT_STRUCT_NAMED_NS(
|
||||
struct_name,
|
||||
(namespace0)(namespace1)...,
|
||||
adapted_name,
|
||||
member_name0,
|
||||
member_name1,
|
||||
member_name2,
|
||||
...
|
||||
)
|
||||
|
||||
// When BOOST_PP_VARIADICS is missing :
|
||||
|
||||
BOOST_FUSION_ADAPT_STRUCT_NAMED(
|
||||
struct_name, adapted_name,
|
||||
(member_type0, member_name0)
|
||||
(member_type1, member_name1)
|
||||
(BOOST_FUSION_ADAPT_AUTO, member_name2),
|
||||
...
|
||||
)
|
||||
|
||||
@ -350,9 +371,12 @@ adapted using the given name.
|
||||
adapted_name,
|
||||
(member_type0, member_name0)
|
||||
(member_type1, member_name1)
|
||||
(BOOST_FUSION_ADAPT_AUTO, member_name2),
|
||||
...
|
||||
)
|
||||
|
||||
|
||||
|
||||
[heading Semantics]
|
||||
|
||||
The above macros generate the necessary code to adapt `struct_name`
|
||||
@ -365,9 +389,12 @@ If an empty namespace sequence is given (that is a macro that expands to
|
||||
nothing), the adapted view is placed in the global namespace.
|
||||
If no namespace sequence is given (i.e. `BOOST_FUSION_ADAPT_STRUCT_NAMED`), the
|
||||
adapted view is placed in the namespace `boost::fusion::adapted`.
|
||||
The sequence of `(member_typeN, member_nameN)`
|
||||
pairs declares the type and names of each of the struct members that are
|
||||
part of the sequence.
|
||||
The sequence of `member_nameN,` arguments or `(member_typeN, member_nameN)`
|
||||
pairs declares the type and names of each of the struct members that are part of
|
||||
the sequence.
|
||||
|
||||
Omitting the type or using BOOST_FUSION_ADAPT_AUTO can be used to infer the type,
|
||||
as with decltype.
|
||||
|
||||
The macros should be used at global scope, and `struct_name` should be the fully
|
||||
namespace qualified name of the struct to be converted.
|
||||
@ -391,8 +418,14 @@ namespace qualified name of the struct to be converted.
|
||||
// referring to demo::employee
|
||||
BOOST_FUSION_ADAPT_STRUCT_NAMED(
|
||||
demo::employee, adapted_employee,
|
||||
(std::string, name)
|
||||
(int, age))
|
||||
name,
|
||||
age)
|
||||
|
||||
// When BOOST_PP_VARIADICS is missing :
|
||||
BOOST_FUSION_ADAPT_STRUCT_NAMED(
|
||||
demo::employee, adapted_employee,
|
||||
(BOOST_FUSION_ADAPT_AUTO, name),
|
||||
(BOOST_FUSION_ADAPT_AUTO, age))
|
||||
|
||||
[endsect]
|
||||
|
||||
|
Reference in New Issue
Block a user