pub fn next(it: *ProgramHeaderBufferIterator) !?Elf64.Phdr 831
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840 pub fn next(it: *ProgramHeaderBufferIterator) !?Elf64.Phdr {
if (it.index >= it.phnum) return null;
defer it.index += 1;
const size: usize = if (it.is_64) @sizeOf(Elf64.Phdr) else @sizeOf(Elf32.Phdr);
const offset = @as(usize, @intCast(it.phoff)) + size * it.index;
var reader = Io.Reader.fixed(it.buf[offset..]);
return try takeProgramHeader(&reader, it.is_64, it.endian);
}