pkg syscall (darwin-arm64), type BpfHdr struct, Pad_cgo_0 [2]uint8
pkg syscall (darwin-arm64), type BpfHdr struct, Tstamp Timeval32
pkg syscall (darwin-arm64), type BpfInsn struct
pkg syscall (darwin-arm64), type BpfInsn struct, Code uint16
pkg syscall (darwin-arm64), type BpfInsn struct, Jf uint8
pkg syscall (darwin-arm64), type BpfInsn struct, Jt uint8
pkg syscall (darwin-arm64), type BpfInsn struct, K uint32

pkg syscall (freebsd-arm64), type BpfHdr struct, Pad_cgo_0 [6]uint8
pkg syscall (freebsd-arm64), type BpfHdr struct, Tstamp Timeval
pkg syscall (freebsd-arm64), type BpfInsn struct
pkg syscall (freebsd-arm64), type BpfInsn struct, Code uint16
pkg syscall (freebsd-arm64), type BpfInsn struct, Jf uint8
pkg syscall (freebsd-arm64), type BpfInsn struct, Jt uint8
pkg syscall (freebsd-arm64), type BpfInsn struct, K uint32

/* Copyright 2011 The Go Authors. All rights reserved.
   Use of this source code is governed by a BSD-style
   license that can be found in the LICENSE file.  */

/* An example of writing a C++ virtual function in Go.  */

%module(directors="1") callback

%{
#include <string>
#include "main.h"
%}

%include "std_string.i"

%feature("director");

3. What did you do?
4. What did you expect to see?
5. What did you see instead?

For change proposals, see [Proposing Changes To Go](https://go.dev/s/proposal-process).

## Contributing code

Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) before sending patches.

Unless otherwise noted, the Go source files are distributed under

-->

## Introduction {#intro}

Go's emphasis on backwards compatibility is one of its key strengths.
There are, however, times when we cannot maintain complete compatibility.
If code depends on buggy (including insecure) behavior,
then fixing the bug will break that code.
New features can also have similar impacts:
enabling the HTTP/2 use by the HTTP client broke programs
connecting to servers with buggy HTTP/2 implementations.

pkg syscall (freebsd-riscv64), type BpfHdr struct, Tstamp Timeval #53466
pkg syscall (freebsd-riscv64), type BpfInsn struct #53466
pkg syscall (freebsd-riscv64), type BpfInsn struct, Code uint16 #53466
pkg syscall (freebsd-riscv64), type BpfInsn struct, Jf uint8 #53466
pkg syscall (freebsd-riscv64), type BpfInsn struct, Jt uint8 #53466
pkg syscall (freebsd-riscv64), type BpfInsn struct, K uint32 #53466

The zoneinfo.zip archive contains time zone files compiled using
the code and data maintained as part of the IANA Time Zone Database.
The IANA asserts that the database is in the public domain.

For more information, see
https://www.iana.org/time-zones
ftp://ftp.iana.org/tz/code/tz-link.html
https://datatracker.ietf.org/doc/html/rfc6557

/* Copyright 2011 The Go Authors. All rights reserved.
   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';
%}

A visible effect of this change is that `len` and `cap` of timer channels
now returns 0 instead of 1, which may affect programs that
poll the length to decide whether a receive on the timer channel
will succeed.
Such code should use a non-blocking receive instead.

These new behaviors are only enabled when the main Go program
is in a module with a `go.mod` `go` line using Go 1.23.0 or later.

pkg debug/pe, const IMAGE_FILE_MACHINE_LOONGARCH64 = 25188 #46229
pkg debug/pe, const IMAGE_FILE_MACHINE_LOONGARCH64 ideal-int #46229
pkg debug/pe, const IMAGE_SCN_CNT_CODE = 32 #51868
pkg debug/pe, const IMAGE_SCN_CNT_CODE ideal-int #51868
pkg debug/pe, const IMAGE_SCN_CNT_INITIALIZED_DATA = 64 #51868
pkg debug/pe, const IMAGE_SCN_CNT_INITIALIZED_DATA ideal-int #51868