*
 * ```
 *  0..63 : Length of the UTF-16 sequence that this range maps to. The offset is b2b3.
 * 64..79 : Offset by a fixed negative offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 * 80..95 : Offset by a fixed positive offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 *    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].

		}
	}
	offset := int64(4)

	// Read the number of FatArchHeaders that come after the fat_header.
	var narch uint32
	err = binary.Read(sr, binary.BigEndian, &narch)
	if err != nil {
		return nil, &FormatError{offset, "invalid fat_header", nil}
	}
	offset += 4

	if narch < 1 {
		return nil, &FormatError{offset, "file contains no images", nil}
	}

}

// Underlying system call writes to newoffset via pointer.
// Implemented in assembly to avoid allocation.
func seek(fd int, offset int64, whence int) (newoffset int64, err Errno)

func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
	newoffset, errno := seek(fd, offset, whence)
	if errno != 0 {
		return 0, errno
	}
	return newoffset, nil
}

/**
 * A basic location pointing to a specific part of a file using a global offset and length for coordinates.
 * <p>
 * The coordinates are expected to be zero indexed.
 */
public interface OffsetInFileLocation extends FileLocation {

    /**
     * The global offset from the beginning of the file.
     *
     * @return the zero-indexed the offset
     */
    int getOffset();

    /**

// String extracts string from COFF string table st at offset start.
func (st StringTable) String(start uint32) (string, error) {
	// start includes 4 bytes of string table length
	if start < 4 {
		return "", fmt.Errorf("offset %d is before the start of string table", start)
	}
	start -= 4
	if int(start) > len(st) {
		return "", fmt.Errorf("offset %d is beyond the end of string table", start)
	}

    }

    def "length of common prefix of #prefix with #absolutePath at offset #offset is #result"() {
        expect:
        VfsRelativePath.of(absolutePath, offset).lengthOfCommonPrefix(prefix, caseSensitivity) == result

        where:
        prefix              | absolutePath            | offset | result
        "hello/world"       | "hello/other"           | 0      | 5

#ifndef PREBUILT_HEADER_${sourceIdx+offset}_H
#define PREBUILT_HEADER_${sourceIdx+offset}_H

// TODO: Actually do something in this header

//sys	utimes(path string, times *[2]Timeval) (err error)

//sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64

func Fadvise(fd int, offset int64, length int64, advice int) (err error) {

		if len(d.info) < 14 {
			return nil, DecodeError{"info", Offset(len(d.info)), "too short"}
		}
		offset = 12
	}
	// Fetch the version, a tiny 16-bit number (1, 2, 3, 4, 5).
	x, y := d.info[offset], d.info[offset+1]
	switch {
	case x == 0 && y == 0:
		return nil, DecodeError{"info", 4, "unsupported version 0"}
	case x == 0:
		d.bigEndian = true
		d.order = binary.BigEndian
	case y == 0:

#ifndef PROJECT_HEADER_${sourceIdx}_H
#define PROJECT_HEADER_${sourceIdx}_H

<% sourceIdx.times { %>
#include "src${it}_h.h"
<% } %>


<% functionCount.times { %>
int C_function_${(it+1)+offset} (); 
int CPP_function_${(it+1)+offset} (); 
<% } %>