python - 构建 Cython 扩展时出现错误 : ‘PyThreadState’ {aka ‘struct _ts’ } has no member named ‘exc_type’ ; did you mean ‘curexc

python - 构建 Cython 扩展时出现错误 : ‘PyThreadState’ {aka ‘struct _ts’ } has no member named ‘exc_type’ ; did you mean ‘curexc_type’ ?

转载作者：行者123 更新时间：2023-12-04 08:16:09

我在 Python 3.8 中收到以下错误，而在 Python 3.6 中没有收到该错误。我怎样才能让它与 Python 3.8 一起工作？为了重现错误，请按照此处操作:https://github.com/davidstutz/mesh-fusion/issues/7

[3645:3637 0:2090] 11:04:08 Tue Jan 12 [mona@goku:pts/0 +1] ~/mesh-fusion/libfusiongpu
$ python setup.py build_ext --inplace
Added OpenMP
running build_ext
skipping 'cyfusion.cpp' Cython extension (up-to-date)
building 'cyfusion' extension
x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/home/mona/venv/tsdf/lib/python3.8/site-packages/numpy/core/include -I/home/mona/venv/tsdf/include -I/usr/include/python3.8 -c cyfusion.cpp -o build/temp.linux-x86_64-3.8/cyfusion.o -ffast-math -msse -msse2 -msse3 -msse4.2 -fopenmp
In file included from /home/mona/venv/tsdf/lib/python3.8/site-packages/numpy/core/include/numpy/ndarraytypes.h:1822,
                 from /home/mona/venv/tsdf/lib/python3.8/site-packages/numpy/core/include/numpy/ndarrayobject.h:12,
                 from /home/mona/venv/tsdf/lib/python3.8/site-packages/numpy/core/include/numpy/arrayobject.h:4,
                 from cyfusion.cpp:531:
/home/mona/venv/tsdf/lib/python3.8/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:17:2: warning: #warning "Using deprecated NumPy API, disable it with " "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
   17 | #warning "Using deprecated NumPy API, disable it with " \
      |  ^~~~~~~
cyfusion.cpp: In function ‘PyObject* PyInit_cyfusion()’:
cyfusion.cpp:22866:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22866 |   __pyx_type_8cyfusion_PyViews.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22866:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22866 |   __pyx_type_8cyfusion_PyViews.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22866:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22866 |   __pyx_type_8cyfusion_PyViews.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22871:33: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22871 |   __pyx_type_8cyfusion_PyVolume.tp_print = 0;
      |                                 ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22871:33: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22871 |   __pyx_type_8cyfusion_PyVolume.tp_print = 0;
      |                                 ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22871:33: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22871 |   __pyx_type_8cyfusion_PyVolume.tp_print = 0;
      |                                 ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22878:26: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22878 |   __pyx_type___pyx_array.tp_print = 0;
      |                          ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22878:26: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22878 |   __pyx_type___pyx_array.tp_print = 0;
      |                          ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22878:26: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22878 |   __pyx_type___pyx_array.tp_print = 0;
      |                          ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22883:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22883 |   __pyx_type___pyx_MemviewEnum.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22883:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22883 |   __pyx_type___pyx_MemviewEnum.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22883:32: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22883 |   __pyx_type___pyx_MemviewEnum.tp_print = 0;
      |                                ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22895:31: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22895 |   __pyx_type___pyx_memoryview.tp_print = 0;
      |                               ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22895:31: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22895 |   __pyx_type___pyx_memoryview.tp_print = 0;
      |                               ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22895:31: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22895 |   __pyx_type___pyx_memoryview.tp_print = 0;
      |                               ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22905:36: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22905 |   __pyx_type___pyx_memoryviewslice.tp_print = 0;
      |                                    ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22905:36: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22905 |   __pyx_type___pyx_memoryviewslice.tp_print = 0;
      |                                    ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp:22905:36: warning: ‘_typeobject::tp_print’ is deprecated [-Wdeprecated-declarations]
22905 |   __pyx_type___pyx_memoryviewslice.tp_print = 0;
      |                                    ^~~~~~~~
In file included from /usr/include/python3.8/object.h:746,
                 from /usr/include/python3.8/pytime.h:6,
                 from /usr/include/python3.8/Python.h:85,
                 from cyfusion.cpp:4:
/usr/include/python3.8/cpython/object.h:260:30: note: declared here
  260 |     Py_DEPRECATED(3.8) int (*tp_print)(PyObject *, FILE *, int);
      |                              ^~~~~~~~
cyfusion.cpp: In function ‘void __Pyx__ExceptionSave(PyThreadState*, PyObject**, PyObject**, PyObject**)’:
cyfusion.cpp:24028:21: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24028 |     *type = tstate->exc_type;
      |                     ^~~~~~~~
      |                     curexc_type
cyfusion.cpp:24029:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24029 |     *value = tstate->exc_value;
      |                      ^~~~~~~~~
      |                      curexc_value
cyfusion.cpp:24030:19: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24030 |     *tb = tstate->exc_traceback;
      |                   ^~~~~~~~~~~~~
      |                   curexc_traceback
cyfusion.cpp: In function ‘void __Pyx__ExceptionReset(PyThreadState*, PyObject*, PyObject*, PyObject*)’:
cyfusion.cpp:24037:24: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24037 |     tmp_type = tstate->exc_type;
      |                        ^~~~~~~~
      |                        curexc_type
cyfusion.cpp:24038:25: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24038 |     tmp_value = tstate->exc_value;
      |                         ^~~~~~~~~
      |                         curexc_value
cyfusion.cpp:24039:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24039 |     tmp_tb = tstate->exc_traceback;
      |                      ^~~~~~~~~~~~~
      |                      curexc_traceback
cyfusion.cpp:24040:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24040 |     tstate->exc_type = type;
      |             ^~~~~~~~
      |             curexc_type
cyfusion.cpp:24041:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24041 |     tstate->exc_value = value;
      |             ^~~~~~~~~
      |             curexc_value
cyfusion.cpp:24042:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24042 |     tstate->exc_traceback = tb;
      |             ^~~~~~~~~~~~~
      |             curexc_traceback
cyfusion.cpp: In function ‘int __Pyx__GetException(PyThreadState*, PyObject**, PyObject**, PyObject**)’:
cyfusion.cpp:24112:24: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24112 |     tmp_type = tstate->exc_type;
      |                        ^~~~~~~~
      |                        curexc_type
cyfusion.cpp:24113:25: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24113 |     tmp_value = tstate->exc_value;
      |                         ^~~~~~~~~
      |                         curexc_value
cyfusion.cpp:24114:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24114 |     tmp_tb = tstate->exc_traceback;
      |                      ^~~~~~~~~~~~~
      |                      curexc_traceback
cyfusion.cpp:24115:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24115 |     tstate->exc_type = local_type;
      |             ^~~~~~~~
      |             curexc_type
cyfusion.cpp:24116:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24116 |     tstate->exc_value = local_value;
      |             ^~~~~~~~~
      |             curexc_value
cyfusion.cpp:24117:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24117 |     tstate->exc_traceback = local_tb;
      |             ^~~~~~~~~~~~~
      |             curexc_traceback
cyfusion.cpp: In function ‘void __Pyx__ExceptionSwap(PyThreadState*, PyObject**, PyObject**, PyObject**)’:
cyfusion.cpp:24354:24: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24354 |     tmp_type = tstate->exc_type;
      |                        ^~~~~~~~
      |                        curexc_type
cyfusion.cpp:24355:25: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24355 |     tmp_value = tstate->exc_value;
      |                         ^~~~~~~~~
      |                         curexc_value
cyfusion.cpp:24356:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24356 |     tmp_tb = tstate->exc_traceback;
      |                      ^~~~~~~~~~~~~
      |                      curexc_traceback
cyfusion.cpp:24357:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
24357 |     tstate->exc_type = *type;
      |             ^~~~~~~~
      |             curexc_type
cyfusion.cpp:24358:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
24358 |     tstate->exc_value = *value;
      |             ^~~~~~~~~
      |             curexc_value
cyfusion.cpp:24359:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
24359 |     tstate->exc_traceback = *tb;
      |             ^~~~~~~~~~~~~
      |             curexc_traceback
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
19149/31772MB(tsdf)

我有:

$ pip --version
pip 20.3.3 from /home/mona/venv/tsdf/lib/python3.8/site-packages/pip (python 3.8)
19149/31772MB(tsdf) 
[3645:3637 0:2092] 11:06:58 Tue Jan 12 [mona@goku:pts/0 +1] ~/mesh-fusion/libfusiongpu
$ python
Python 3.8.5 (default, Jul 28 2020, 12:59:40) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cython
>>> cython.__version__
'0.29.21'
>>> quit()
19149/31772MB(tsdf) 
[3645:3637 0:2093] 11:07:14 Tue Jan 12 [mona@goku:pts/0 +1] ~/mesh-fusion/libfusiongpu
$ lsb_release -a
LSB Version:    core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:    20.04
Codename:   focal
19365/31772MB(tsdf)

最佳答案

使用 -f 强制重建/重新生成 cythonized 文件(或 --force )，即:

python setup.py build_ext -i -f

或者如果使用 pip :

pip install --global-option build --global-option --force .

大致可以理解为:安装前运行 build (包括 build_ext )与选项 ´--force`。

手头的问题是，Cython 生成的 c/cpp 文件将来可能会与新的 Python 版本不兼容。
例如，Cython 0.27 不支持 Python3.8，因为当时 Python3.8 还不存在。因此，使用 Cython 0.27 创建的 c/cpp 文件(例如来自 git-repository 的 cyfusion.cpp)不会使用 Py3.8+-headers 构建。 distutils使用时间戳来决定文件是否应该重建/重新生成/再循环，就它而言，Cython 生成的 cyfusion.cpp -file 是最新的 - 因为 cyfusion.pyx一代后没有改变。完全不考虑整个不同的 Python/Cython 版本业务。
因此，强制 distutils 重建所有内容可以解决过时的 c/cpp 文件的问题。
一般来说，我认为将 cython 生成的文件放入发行版/git 不是一个好主意，因为它可能/将来会成为绊脚石，有一些例子:

““tp_print 不是 _typeobject 的成员”-Python3.9+ 的错误(例如这个 post)

较旧的 cython 版本没有属性 __reduce_cython__ (例如这个 post)

另一种可能的解决方法是删除过时的(cython 生成的) cyfusion.cpp - 来自发行版/git-repository 的文件并运行

python setup.py build_ext -i

然后。

关于python - 构建 Cython 扩展时出现错误 : ‘PyThreadState’ {aka ‘struct _ts’ } has no member named ‘exc_type’ ; did you mean ‘curexc_type’ ?，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/65695724/

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我一直在尝试让 Glew 和 opengl 3.2 在 win32 上下文中使用代码块 (minGW)。我找到了一个不错的小教程 here 因为我一直在努力弄清楚在代码块中编译 glew 是否真的可行
C++:错误:数组下标的无效类型 ‘size_t {aka long unsigned int}[size_t {aka long unsigned int}]’
这个问题在这里已经有了答案: how to pass 2 dimensional array if both dimensions are unknown at compile time (5 个答
ios - 值转换问题 : Implicit conversion loses integer precision: 'NSInteger' (aka 'long' ) to 'int32_t' (aka 'int' )
这个问题在这里已经有了答案: Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned
objective-c - Xcode 8.0 beta 6，隐式转换丢失整数精度: 'NSInteger' (aka 'long' ) to 'CGSWindow' (aka 'int' )
我似乎遇到了一些与 Xcode 8 beta 和 64 位迁移相关的成长烦恼。在搜索中，我发现了一些相关问题，但没有一个专门与解决“NSInteger”(又名“long”)到“CGSWindow”(又
c++ - 从 ‘const BYTE* {aka const unsigned char*}’ 到 ‘BYTE_PTR {aka unsigned char*}’ 的无效转换
我不知道为什么 g++ 编译器在编译这段代码时给我错误: typedef unsigned char BYTE; typedef BYTE* BYTE_PTR; const BYTE myByte[]
c++ - 从 ‘std::wstring {aka std::basic_string}’ 到非标量类型 ‘UString {aka std::basic_string}’ 的转换
你能告诉我这段代码有什么问题吗？关于如何修复的任何想法？ JNIEXPORT jstring JNICALL Java_COM_DEMO_TEST_SEND (JNIEnv *env, jclass
c - 错误: invalid types 'uint16_t {aka short unsigned int}[uint8_t {aka unsigned char}]' for array subscript
背景:我目前正在为“Uncanny Eyes”开发 Adafruit 程序。我的目的是能够有几个瞬时开关，将静态图像绘制到一对 1.5 英寸 OLED 上。该程序使用 Teensy 3.1 或 3.
c++ - 从 'BYTE* {aka unsigned char*}' 转换为 'DWORD {aka long unsigned int}' 失去精度 [-fpermissive]
我正在尝试将地址添加到模块基址 HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pId); MODULEENTRY3
c - 警告 : Incompatible pointer types assigning to 'node_t *' (aka 'struct node *' ) from 'mode_t' (aka 'unsigned int *' )
我们的项目是使用我们大学的一位教授开发的机器人和软件来制作一部电影。该库称为 MyroC，机器人利用该库实现许多功能。理想情况下，我们让机器人拍摄用户输入的许多帧(图片)。用户还可以选择将“场景”或小
c++ - 错误 : no match for 'operator*' (operand types are 'std: :string {aka std basic_string}' and {aka std basic_string}')
所以我是编程新手，这是大学工程类(class)的一部分。我决定找点乐子，在课外写点东西。我正在尝试用 C++ 编写一个程序，允许用户输入 3 个矩形棱柱的长度、宽度和高度值，程序将使用这 3 个值来计
Android连接到EAP-AKA WiFi
我需要一个简单的代码，说明如何从移动应用程序连接到安全 WIFI (EAP-AKA)。我有以下代码，但我不知道它是否正确，也不知道如何使用它。如果有人有示例代码，那就太好了。 // Initial
ios - 从不兼容的类型id_nullable分配给cllocationdegrees('aka double')
NSString* lat,*longi; lat= [[deliveryInfo objectAtIndex:0]valueForKey:@"latitude"]; NSLog(@"LATITUDE
mysql - 多列交叉表 AKA 枢轴
我已经学习和练习 sql 大约 6 个月了。我已经准备好投入其中，只是承认我对此很愚蠢，而且我的大脑无法理解它的大部分模式。我正在尝试创建一个数据透视表。关于这个主题的简单文献并不多，我找到的一个来源
c++ - 如果字符在引号之间则不匹配(AKA 具有编程字符串模式)
我被指派为 Basic programming language 编写编译器.在基本情况下，代码用换行符或 : 标记分隔。例如，以下代码是有效的。型号#1 10 PRINT "Hello Worl
ruby - 在正文中查找最常见短语的有效方法 AKA 热门话题
我之前问过一个 similar question在这个主题上，我最终得出了几个有效的解决方案，一个基于布隆过滤器 + ngrams，另一个基于哈希表 + ngrams。这两种解决方案在小数据集(<10

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python - 构建 Cython 扩展时出现错误 : ‘PyThreadState’ {aka ‘struct _ts’ } has no member named ‘exc_type’ ; did you mean ‘curexc_type’ ?