施放本地指針

Question

我有一個本地uchar指針，我想將其轉換爲本地ulong指針。

即

local uchar* foo; 
local ulong* bar = (local ulong*)foo; 

當我這樣做時，內存條點不等於內存FOO點。這是一個錯誤，還是我做錯了什麼？

Answer 1

您可以參考這個網頁：

https://software.intel.com/en-us/articles/the-generic-address-space-in-opencl-20

http://www.fixstars.com/en/opencl/book/OpenCLProgrammingBook/opencl-c/

How to type-cast char* to int* in openCL

void foo(global unsigned int *bar) // ‘global’ address space on bar, works in both OCL 1.2 and OCL 2.0 with no additional flags to compile 

    { 

     local unsigned int *temp = NULL;//’local’ address space on temp, works in both OCL 1.2 and OCL 2.0 with no additional flags to compile 

    }