[struct_pack]struct filed more than 100 support

[callmeRambo]

Hi there, my struct has more than 300 memebers, each of them represent a signal from bus and will not easily change its structure.
Ive changed MaxVisitMembers to 1024 and expand visitor(SPG1024(0)), however another assertion failed said struct with more than 100 fields is unsupported.
Is there a way to expand supported tuple size?

[poor-circle]

The simple way is add a nested struct so that each struct has members no more than 256.

[callmeRambo]

The simple way is add a nested struct so that each struct has members no more than 256.

感谢答复，不瞒你说我暂时动不了结构体定义，基于这个前提按照您的方法我需要做一个结构体映射，增加了使用成本和外部序列化时间。

[poor-circle]

The simple way is add a nested struct so that each struct has members no more than 256.

感谢答复，不瞒你说我暂时动不了结构体定义，基于这个前提按照您的方法我需要做一个结构体映射，增加了使用成本和外部序列化时间。

这个结构体你需要定义struct_pack_refl宏吗？这个宏目前是只能支持124个元素。原因是MSVC编译器的默认上限。

[poor-circle]

我看看怎么改下代码，然后加一个文档说明一下如何支持更多元素。默认是256现在。

[poor-circle]

你目前的情况，可以试下修改member_macro.hpp文件。这个文件最上面的注释里面有python代码，你改下生成512的版本。

[callmeRambo]

member_macro.hpp拓展后，其他参数如 MaxVisitMembers 等需要配合改动吗？

[poor-circle]

member_macro.hpp拓展后，其他参数如 MaxVisitMembers 等需要配合改动吗？

MaxVisitMembers只是用来static_assert的，如果出现static_assert报错你也可以改下。

[poor-circle]

Now we refact the code.
Please see document of struct_pack_tips about how to expend limitation of field numbers.