// #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
by making copies of the data. In pseudo-Go definitions:

	// Go string to C string

				if s, ok := spec.(*ast.ImportSpec); ok && s.Path.Value == `"C"` {
					// Replace "C" with _ "unsafe", to keep program valid.
					// (Deleting import statement or clause is not safe if it is followed
					// in the source by an explicit semicolon.)
					f.Edit.Replace(f.offset(s.Path.Pos()), f.offset(s.Path.End()), `_ "unsafe"`)
				}
			}
		}
	}

	// Accumulate pointers to uses of C.x.
	if f.Ref == nil {

						delete this._inst;
						delete this._values;
						delete this._goRefCounts;
						delete this._ids;
						delete this._idPool;
						this.exit(code);
					},

					// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
					"runtime.wasmWrite": (sp) => {
						sp >>>= 0;
						const fd = getInt64(sp + 8);
						const p = getInt64(sp + 16);
						const n = this.mem.getInt32(sp + 24, true);

pkg go/types, type TypeAndValue struct, Value constant.Value
pkg go/types, type TypeName struct
pkg go/types, type Var struct
pkg go/types, var Typ []*Basic
pkg go/types, var Universe *Scope
pkg go/types, var Unsafe *Package
pkg html/template, method (*Template) Option(...string) *Template
pkg image, const YCbCrSubsampleRatio410 = 5
pkg image, const YCbCrSubsampleRatio410 YCbCrSubsampleRatio
pkg image, const YCbCrSubsampleRatio411 = 4

pkg reflect, method (Value) FieldByIndexErr([]int) (Value, error)
pkg reflect, method (Value) SetIterKey(*MapIter)
pkg reflect, method (Value) SetIterValue(*MapIter)
pkg reflect, method (Value) UnsafePointer() unsafe.Pointer
pkg runtime/debug, func ParseBuildInfo(string) (*BuildInfo, error)
pkg runtime/debug, method (*BuildInfo) String() string
pkg runtime/debug, type BuildInfo struct, GoVersion string

	lastRead readOp // last read operation, so that Unread* can work correctly.
}

// The readOp constants describe the last action performed on
// the buffer, so that UnreadRune and UnreadByte can check for
// invalid usage. opReadRuneX constants are chosen such that
// converted to int they correspond to the rune size that was read.
type readOp int8

// Don't use iota for these, as the values need to correspond with the

		}
		tokens := Tokenize(name)
		if len(tokens) != 1 || tokens[0].ScanToken != scanner.Ident {
			fmt.Fprintf(os.Stderr, "asm: parsing -D: %q is not a valid identifier name\n", tokens[0])
			flags.Usage()
		}
		macros[name] = &Macro{
			name:   name,
			args:   nil,
			tokens: Tokenize(value),
		}
	}
	return macros
}

var panicOnError bool // For testing.

func (tw *Writer) WriteHeader(hdr *Header) error {
	if err := tw.Flush(); err != nil {
		return err
	}
	tw.hdr = *hdr // Shallow copy of Header

	// Avoid usage of the legacy TypeRegA flag, and automatically promote
	// it to use TypeReg or TypeDir.
	if tw.hdr.Typeflag == TypeRegA {
		if strings.HasSuffix(tw.hdr.Name, "/") {
			tw.hdr.Typeflag = TypeDir
		} else {

	w := &Walker{
		context:  context,
		root:     root,
		features: map[string]bool{},
		imported: map[string]*apiPackage{"unsafe": &apiPackage{Package: types.Unsafe}},
	}
	w.loadImports()
	return w
}

func (w *Walker) Features() (fs []string) {
	for f := range w.features {
		fs = append(fs, f)
	}
	sort.Strings(fs)
	return
}

pkg syscall (windows-386), type ProcessEntry32 struct, Size uint32
pkg syscall (windows-386), type ProcessEntry32 struct, Threads uint32
pkg syscall (windows-386), type ProcessEntry32 struct, Usage uint32
pkg syscall (windows-amd64), const TH32CS_INHERIT = 2147483648
pkg syscall (windows-amd64), const TH32CS_INHERIT ideal-int
pkg syscall (windows-amd64), const TH32CS_SNAPALL = 15