github.com/q45/go@v0.0.0-20151101211701-a4fb8c13db3f/misc/cgo/testsanitizers/msan.go (about)

     1  package main
     2  
     3  /*
     4  #include <stdint.h>
     5  
     6  void f(int32_t *p, int n) {
     7    int i;
     8  
     9    for (i = 0; i < n; i++) {
    10      p[i] = (int32_t)i;
    11    }
    12  }
    13  */
    14  import "C"
    15  
    16  import (
    17  	"fmt"
    18  	"os"
    19  	"unsafe"
    20  )
    21  
    22  func main() {
    23  	a := make([]int32, 10)
    24  	C.f((*C.int32_t)(unsafe.Pointer(&a[0])), C.int(len(a)))
    25  	for i, v := range a {
    26  		if i != int(v) {
    27  			fmt.Println("bad %d: %v\n", i, a)
    28  			os.Exit(1)
    29  		}
    30  	}
    31  }