0

这个最小的例子:

int main() 
{
    struct surfaceReference* surfaceReferencePointer;
    cudaGetSurfaceReference(&surfaceReferencePointer, "surfaceReference"); 
}

像这样编译时失败:

nvcc -g -arch=sm_20 -o foo.out foo.cu

显示以下错误消息:

foo.cu(4): warning: argument of type "surfaceReference **" is incompatible with parameter of type "const surfaceReference **"
foo.cu(4): warning: argument of type "surfaceReference **" is incompatible with parameter of type "const surfaceReference **"

foo.cu: In function ‘int main()’:
foo.cu:4: error: invalid conversion from ‘surfaceReference**’ to ‘const surfaceReference**’
foo.cu:4: error:   initializing argument 1 of ‘cudaError_t cudaGetSurfaceReference(const surfaceReference**, const char*)’

我无法理解我做错了什么。我正在使用 CUDA 3.2 在 Linux Ubuntu 64 位机器上进行编译。

4

1 回答 1

0

struct surfaceReference*指针应定义const为:

int main() 
{
    const struct surfaceReference* surfaceReferencePointer;
    cudaGetSurfaceReference(&surfaceReferencePointer, "surfaceReference"); 
}

感谢 codymanix,他在评论中提供了正确的答案。

于 2011-03-25T22:37:43.320 回答