Building failure on Win10+VS2019

[zhangybzbo]

When trying to build on Windows10+VS2019 environment, I got tons of errors regarding the file ".\include\mpark\variant.hpp".

Here is a snippet of the error message. Does anyone have any idea of how to solve the issue?
(and hope you don't mind that my system is in Chinese)

C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,29): error C3546: “...”: 没有可用于扩展的参数包 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(969): message : 查看对正在编译的函数 模板 实例化“mpark::detail::Trait mpark::detail::common_trait<mpark::detail::Trait,mpark::detail::Trait,mpark
::detail::Trait,mpark::detail::Trait>(mpark::detail::Trait,mpark::detail::Trait,mpark::detail::Trait,mpark::detail::Trait)”的引用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1758): message : 查看对正在编译的 类 模板 实例化“mpark::detail::traits<pangolin::Image,pangolin::Image<uint32_t>,pangolin::Image<uint16_t>,pangolin::Image>”的引用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(2057): message : 查看对正在编译的 类 模板 实例化“mpark::detail::impl<pangolin::Image,pangolin::Image<uint32_t>,pangolin::Image<uint16_t>,
pangolin::Image>”的引用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\src\geometry\geometry.cpp(55): message : 查看对正在编译的 类 模板 实例化“mpark::variant<pangolin::Image,pangolin::Image<uint32_t>,pangolin::Image<uint16_t>,pangoli
n::Image>”的引用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,23): error C2955: “mpark::detail::traits”: 使用 类 模板 需要 模板 参数列表 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(965): message : 参见“mpark::detail::traits”的声明 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): error C2119: "$L0": 无法从空的初始值设定项推导 "auto &&" 的类型 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): error C2672: “begin”: 未找到匹配的重载函数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C2893: 未能使函数模板“unknown-type std::begin(_Container &)”专用化 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj
]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.26.28801\include\xutility(1961): message : 参见“std::begin”的声明 [C:\Program Files (x86)\Pangolin\build\src\pa
ngolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): message : 用下列模板参数: [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): message : “_Container=int” [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C2784: “const _Elem *std::begin(std::initializer_list<_Elem>) noexcept”: 未能从“int”为“std::initializer_list<_Elem>”推导 模
板 参数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.26.28801\include\initializer_list(57): message : 参见“std::begin”的声明 [C:\Program Files (x86)\Pangolin\build
src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): error C2672: “end”: 未找到匹配的重载函数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C2893: 未能使函数模板“unknown-type std::end(_Container &)”专用化 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.26.28801\include\xutility(1971): message : 参见“std::end”的声明 [C:\Program Files (x86)\Pangolin\build\src\pang
olin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): message : 用下列模板参数: [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): message : “_Container=int” [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C2784: “const _Elem *std::end(std::initializer_list<_Elem>) noexcept”: 未能从“int”为“std::initializer_list<Elem>”推导 模板
参数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.26.28801\include\initializer_list(63): message : 参见“std::end”的声明 [C:\Program Files (x86)\Pangolin\build\sr
c\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C3536: “$L0”: 初始化之前无法使用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C3536: “$L0”: 初始化之前无法使用 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,33): error C2100: 非法的间接寻址 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,1): error C2440: “初始化”: 无法从“int”转换为“mpark::detail::Trait” [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,33): message : 强制转换为枚举类型要求显式强制转换(static_cast、C 样式强制转换或函数样式强制转换) [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(967,23): error C2131: 表达式的计算结果不是常数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): message : 遇到非常量(子)表达式 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(972,23): error C2131: 表达式的计算结果不是常数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): message : 遇到非常量(子)表达式 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(977,23): error C2131: 表达式的计算结果不是常数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(977,24): message : 读取未初始化符号导致失败 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(977,24): message : 请参见“copy_constructible_trait”的用法 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(983,23): error C2131: 表达式的计算结果不是常数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(983,24): message : 读取未初始化符号导致失败 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(983,24): message : 请参见“move_constructible_trait”的用法 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(989,23): error C2131: 表达式的计算结果不是常数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(939,22): message : 遇到非常量(子)表达式 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1758,25): error C2976: “mpark::detail::copy_assignment”: 模板 参数太少 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1721): message : 参见“mpark::detail::copy_assignment”的声明 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1758,56): error C2504: “mpark::detail::copy_assignment<mpark::detail::traits<pangolin::Image,pangolin::Image<uint32_t>,pang
olin::Image<uint16_t>,pangolin::Image>,copy_assignable_trait>”: 未定义基类 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1762,7): error C2027: 使用了未定义类型“mpark::detail::copy_assignment<mpark::detail::traits<pangolin::Image,pangolin::Image<uint32
t>,pangolin::Image<uint16_t>,pangolin::Image>,copy_assignable_trait>” [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1758): message : 参见“mpark::detail::copy_assignment<mpark::detail::traits<pangolin::Image,pangolin::Image<uint32_t>,pangolin
::Image<uint16_t>,pangolin::Image>,copy_assignable_trait>”的声明 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1762,7): error C3881: 只能从直接基继承构造函数 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1763,20): error C2027: 使用了未定义类型“mpark::detail::copy_assignment<mpark::detail::traits<pangolin::Image,pangolin::Image,pangolin::Image<uint16_t>,pangolin::Image>,copy_assignable_trait>” [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]
C:\Program Files (x86)\Pangolin\include\mpark\variant.hpp(1758): message : 参见“mpark::detail::copy_assignment<mpark::detail::traits<pangolin::Image,pangolin::Image<uint32_t>,pangolin
::Image<uint16_t>,pangolin::Image>,copy_assignable_trait>”的声明 [C:\Program Files (x86)\Pangolin\build\src\pangolin.vcxproj]
with
[
T=unsigned char
]

[Lishen1]

problem in include\mpark\variant.hpp
#if defined(__cpp_constexpr) && __cpp_constexpr >= 201304
#define MPARK_CPP14_CONSTEXPR
#endif

to work around this problem just comment #define MPARK_CPP14_CONSTEXPR line

[zhangybzbo]

Thanks, @Lishen1, the solution solves the problem!

problem in include\mpark\variant.hpp
#if defined(__cpp_constexpr) && __cpp_constexpr >= 201304
#define MPARK_CPP14_CONSTEXPR
#endif

to work around this problem just comment #define MPARK_CPP14_CONSTEXPR line