使用 CUDA 和 C++11 时出错

Error while using CUDA and C++11(使用 CUDA 和 C++11 时出错)

问题描述

我正在使用 CUDA 4.1 和 GCC 4.5 ...(终于！CUDA 支持 GCC 4.5，但仍在等待 GCC 4.6).无论如何，是否可以在 CUDA 4.1 中使用 C++11?

I am using CUDA 4.1 and GCC 4.5 ... (FINALLY! CUDA supports GCC 4.5, but still waiting for GCC 4.6). Anyways, is it possible to use C++11 with the CUDA 4.1?

我尝试过:

--compiler-options "-std=c++0x"

到 nvcc，它会向我抛出一堆错误:

to nvcc and it throws a bunch of errors at me:

/usr/include/c++/4.5/exception_ptr.h(100): error: copy constructor for class "std::__exception_ptr::exception_ptr" may not have a parameter of type "std::__exception_ptr::exception_ptr"

/usr/include/c++/4.5/exception_ptr.h(100): error: expected a ")"

/usr/include/c++/4.5/exception_ptr.h(110): error: expected a ")"

/usr/include/c++/4.5/exception_ptr.h(132): error: identifier "type_info" is undefined

/usr/include/c++/4.5/exception_ptr.h(101): error: identifier "__o" is undefined

/usr/include/c++/4.5/exception_ptr.h(112): error: expected a ">"

/usr/include/c++/4.5/exception_ptr.h(112): error: identifier "__o" is undefined

/usr/include/c++/4.5/nested_exception.h(62): error: expected a ";"

/usr/include/c++/4.5/nested_exception.h(64): error: expected a ";"

/usr/include/c++/4.5/nested_exception.h(77): error: member function "std::nested_exception::~nested_exception" may not be redeclared outside its class

/usr/include/c++/4.5/nested_exception.h(77): error: function "std::<error>" may not be initialized

/usr/include/c++/4.5/nested_exception.h(77): error: expected an expression

/usr/include/c++/4.5/nested_exception.h(82): error: expected a ")"

/usr/include/c++/4.5/nested_exception.h(110): error: expected a ")"

/usr/include/c++/4.5/nested_exception.h(115): error: expected a ")"

/usr/include/c++/4.5/nested_exception.h(122): error: expected a ")"

/usr/include/c++/4.5/nested_exception.h(127): error: expected a ")"

/usr/include/c++/4.5/nested_exception.h(127): error: function template "std::__throw_with_nested" has already been defined

/usr/include/c++/4.5/bits/cpp_type_traits.h(180): error: identifier "char16_t" is undefined

/usr/include/c++/4.5/bits/cpp_type_traits.h(187): error: identifier "char32_t" is undefined

/usr/include/c++/4.5/bits/cpp_type_traits.h(187): error: class "std::__is_integer<<error-type>>" has already been defined

21 errors detected in the compilation of "/tmp/tmpxft_00000ef2_00000000-4_test_cuda.cpp1.ii".

示例 test.cu

#include <cuda.h>

__host__ void test() {
  // nothing in method
}

编译良好:

nvcc -c -o test.o test.cu

但不使用 C++0x

nvcc -c -o test.o test.cu --compiler-options "-std=c++0x"

推荐答案

不，在这个答案中，nvcc 不支持 c++11 结构，即使它们被宿主编译器支持.

No, as of this answer, nvcc does not support c++11 constructs, even if they are supported by the host compiler.

它不像将 -std=c++0x 传递给主机编译器那么简单的原因是 nvcc 必须解析整个代码为了将它分成 __host__ 和 __device__ 两半.这个预处理发生在主机编译器被提供任何代码之前，所以 nvcc 的解析器需要能够 grok c++11 才能工作.

The reason it isn't as simple as passing -std=c++0x to the host compiler is that nvcc has to parse the entirety of the code in order to split it into its __host__and __device__ halves. This preprocess happens before the host compiler is presented with any code at all, so nvcc's parser needs to be able to grok c++11 for it to work.

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