Closed
Description
$ go version
go version devel +45468e9eae1f Wed May 22 18:51:15 2013 +0800 darwin/amd64
What steps will reproduce the problem?
Following Minux's suggested steps:
$ mkdir -p /tmp/gopath/src/cgotest
$ cd /tmp/gopath/src/cgotest
$ cat > main.go <<EOF
package main
import (
"fmt"
"unsafe"
)
/*
#include <stdlib.h>
void my_printf(char* str);
*/
import "C"
//export hello_from_c
func hello_from_c(s string, i int) {
fmt.Printf("From C: %s, %d\n", s, i)
}
func main() {
cstr := C.CString("GoTest")
defer C.free(unsafe.Pointer(cstr))
C.my_printf(cstr)
}
EOF
$ cat > part.c <<EOF
#include <_cgo_export.h>
#include <stdio.h>
void my_printf(char *s){
printf("From Go: %s\n", s);
GoString d;
d.p = "C Test";
d.n = 7;
// printf("C STRING: %s\n", d.p);
// fflush(stdout);
hello_from_c(d, 42);
}
EOF
$ GOPATH=/tmp/gopath go install cgotest
$ /tmp/gopath/bin/cgotest
What is the expected output?
From Go: GoTest
From C: C Test, 42
What do you see instead?
http://play.golang.org/p/QsokZKHkRr
Which operating system are you using?
OSX