/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:7: error: ‘numeric_limits’ is not a class template
300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:77: error: expected template-name before ‘<’ token
300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:77: error: expected ‘{’ before ‘<’ token
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:344:18: error: ‘numeric_limits’ is not a class template
344 | template<> class numeric_limits<const QT_PREPEND_NAMESPACE(qfloat16)>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:344:69: error: ‘std::numeric_limits’ is not a template
344 | template<> class numeric_limits<const QT_PREPEND_NAMESPACE(qfloat16)>
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:7: note: previous declaration here
300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:345:28: error: expected template-name before ‘<’ token
345 | : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:346:18: error: ‘numeric_limits’ is not a class template
346 | template<> class numeric_limits<volatile QT_PREPEND_NAMESPACE(qfloat16)>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:346:72: error: ‘std::numeric_limits’ is not a template
346 | template<> class numeric_limits<volatile QT_PREPEND_NAMESPACE(qfloat16)>
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:7: note: previous declaration here
300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:347:28: error: expected template-name before ‘<’ token
347 | : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:348:18: error: ‘numeric_limits’ is not a class template
348 | template<> class numeric_limits<const volatile QT_PREPEND_NAMESPACE(qfloat16)>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:348:78: error: ‘std::numeric_limits’ is not a template
348 | template<> class numeric_limits<const volatile QT_PREPEND_NAMESPACE(qfloat16)>
| ^
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:300:7: note: previous declaration here
300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
| ^~~~~~~~~~~~~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:349:28: error: expected template-name before ‘<’ token
349 | : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
| ^
In file included from /home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/qendian.h:1,
from /home/zty/Qt/5.15.2/Src/qtbase/src/corelib/codecs/qutfcodec.cpp:43:
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h: In static member function ‘static constexpr QSpecialInteger<S> QSpecialInteger<S>::max()’:
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h:331:30: error: ‘std::numeric_limits’ is not a template
331 | { return QSpecialInteger(std::numeric_limits<T>::max()); }
| ^~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h:331:54: error: incomplete type ‘std::numeric_limits’ used in nested name specifier
331 | { return QSpecialInteger(std::numeric_limits<T>::max()); }
| ^~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h: In static member function ‘static constexpr QSpecialInteger<S> QSpecialInteger<S>::min()’:
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h:333:30: error: ‘std::numeric_limits’ is not a template
333 | { return QSpecialInteger(std::numeric_limits<T>::min()); }
| ^~~
/home/zty/Qt/5.15.2/Src/qtbase/include/QtCore/../../src/corelib/global/qendian.h:333:54: error: incomplete type ‘std::numeric_limits’ used in nested name specifier
333 | { return QSpecialInteger(std::numeric_limits<T>::min()); }
修改 Src/qtbase/src/corelib/global/qglobal.h
ifdef __cplusplus
include <type_traits>
include <cstddef>
include <utility>
+++ # include <limits> //加上这行
