golang 学习记录

转载于 2013-11-22 21:25:00 发布 · 57 阅读

0 ·

CC 4.0 BY-SA版权

原文链接：https://my.oschina.net/u/1408729/blog/178403

文章标签：

#golang #python

2019独角兽企业重金招聘Python工程师标准>>>

package main

/*
   #include <stdio.h>
   #include <stdlib.h>
   struct CType {
       int Id;
       int Id2;
   };
   typedef struct CType TheCType;
   TheCType *getTheArray(int length){

       TheCType *ctype;

       ctype = malloc(length*sizeof(TheCType));

       return ctype;
   }
   void Free(TheCType *ctype){
       free(ctype);
   }
*/
import "C"
import (
   //"fmt"
   "reflect"
   //"time"
   "unsafe"
)

var theGoSlice []C.TheCType

func cc() {

   length := C.int(500000)

   var theCArray = C.getTheArray(length)
   C.Free(theCArray)

   sliceHeader := (*reflect.SliceHeader)((unsafe.Pointer(&theGoSlice)))
   sliceHeader.Cap = int(uintptr(length))
   sliceHeader.Len = int(uintptr(length))
   sliceHeader.Data = uintptr(unsafe.Pointer(theCArray))

}

不知道是否正确

转载于:https://my.oschina.net/u/1408729/blog/178403