// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build gc

#include "_cgo_export.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

/* Test calling panic from C.  This is what SWIG does.  */

extern void crosscall2(void (*fn)(void *, int), void *, int);
extern void _cgo_panic(void *, int);

	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"strconv"
	"strings"
	"sync"
	"testing"
)

func TestStdio(t *testing.T) {
	testenv.MustHaveCGO(t)
	mustHaveSwig(t)
	run(t, "testdata/stdio", false)
}

func TestCall(t *testing.T) {
	testenv.MustHaveCGO(t)
	mustHaveSwig(t)
	mustHaveCxx(t)
	run(t, "testdata/callback", false, "Call")

circumvent this by using a C function wrapper. For example:

	package main

	// #include <stdio.h>
	// #include <stdlib.h>
	//
	// static void myprint(char* s) {
	//   printf("%s\n", s);
	// }
	import "C"
	import "unsafe"

	func main() {
		cs := C.CString("Hello from stdio")
		C.myprint(cs)
		C.free(unsafe.Pointer(cs))
	}

A few special functions convert between Go and C types

pkg syscall (netbsd-arm64-cgo), type Timeval struct, Usec int32
pkg syscall (netbsd-arm64-cgo), type WaitStatus uint32
pkg syscall (netbsd-arm64-cgo), var Stderr int
pkg syscall (netbsd-arm64-cgo), var Stdin int
pkg syscall (netbsd-arm64-cgo), var Stdout int
pkg syscall (netbsd-arm64), const AF_APPLETALK = 16
pkg syscall (netbsd-arm64), const AF_APPLETALK ideal-int
pkg syscall (netbsd-arm64), const AF_ARP = 28

   Use of this source code is governed by a BSD-style
   license that can be found in the LICENSE file.  */

/* A trivial example of wrapping a C library using SWIG.  */

%{
#include <stdio.h>
#include <stdlib.h>
%}

%typemap(gotype) const char * "string"
%typemap(in) const char * %{
	$1 = malloc($input.n + 1);
	memcpy($1, $input.p, $input.n);
	$1[$input.n] = '\0';
%}

pkg syscall (freebsd-386-cgo), type Timeval struct, Usec int32
pkg syscall (freebsd-386-cgo), type WaitStatus uint32
pkg syscall (freebsd-386-cgo), var Stderr int
pkg syscall (freebsd-386-cgo), var Stdin int
pkg syscall (freebsd-386-cgo), var Stdout int
pkg syscall (freebsd-amd64), const F_DUP2FD_CLOEXEC = 18
pkg syscall (freebsd-amd64), const F_DUP2FD_CLOEXEC ideal-int

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build gccgo

#include "_cgo_export.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

/* Test calling panic from C.  This is what SWIG does.  */

extern void _cgo_panic(const char *);
extern void *_cgo_allocate(size_t);

void
callPanic(void)
{

//go:build linux && cgo

package cgotest

import (
	"fmt"
	"internal/testenv"
	"os"
	"runtime"
	"sort"
	"strings"
	"syscall"
	"testing"
)

// #include <stdio.h>
// #include <stdlib.h>
// #include <pthread.h>
// #include <unistd.h>
// #include <sys/types.h>
//
// pthread_t *t = NULL;
// pthread_mutex_t mu;
// int nts = 0;
// int all_done = 0;
//

	return c
}

// gccDebug runs gcc -gdwarf-2 over the C program stdin and
// returns the corresponding DWARF data and, if present, debug data block.
func (p *Package) gccDebug(stdin []byte, nnames int) (d *dwarf.Data, ints []int64, floats []float64, strs []string) {
	runGcc(stdin, p.gccCmd())

	isDebugInts := func(s string) bool {

.*.swp
core
*.cgo*.go
*.cgo*.c
_cgo_*
_obj
_test
_testmain.go

/VERSION.cache
/bin/
/build.out
/doc/articles/wiki/*.bin
/goinstall.log
/last-change
/misc/cgo/life/run.out
/misc/cgo/stdio/run.out
/misc/cgo/testso/main
/pkg/
/src/*.*/
/src/cmd/cgo/zdefaultcc.go
/src/cmd/dist/dist
/src/cmd/go/internal/cfg/zdefaultcc.go
/src/cmd/internal/objabi/zbootstrap.go
/src/go/build/zcgo.go