1%#  -*- c -*-
2#include "ruby/ruby.h"
3<%
4class String
5  def tr_cpp
6    strip.upcase.tr_s("^A-Z0-9_*", "_").tr_s("*", "P")
7  end
8end
9headers = Hash.new {[]}
10sizes = {}
11types = ARGF.grep(/^\s*RUBY_CHECK_SIZEOF\((\w[^\[\],#]*)[^#]*\)|
12                   ^\s*RUBY_DEFINT\((\w[^\[\],#]*)[^#]*\)|
13                   ^\s*have_type\('(.+?)'(?:,\s*%w\[(.+)\])?\)/x) do
14  sizes[type = $3] = true
15  hdrs = $4 and hdrs.split.each {|h| headers[h] <<= type}
16  type || $+
17end
18conditions = {
19  "long long" => 'defined(HAVE_TRUE_LONG_LONG)',
20}
21%>
22% headers.each do |h, type|
23#if <%= type.map {|t| "defined(HAVE_TYPE_#{t.tr_cpp})"}.join(' || ') %>
24# include <<%= h %>>
25#endif
26
27% end
28extern void Init_limits(void);
29void
30Init_sizeof(void)
31{
32    VALUE s = rb_hash_new();
33    rb_define_const(rb_define_module("RbConfig"), "SIZEOF", s);
34
35#define DEFINE(type, size) rb_hash_aset(s, rb_str_new_cstr(#type), INT2FIX(SIZEOF_##size))
36#define DEFINE_SIZE(type) rb_hash_aset(s, rb_str_new_cstr(#type), INT2FIX(sizeof(type)))
37
38% types.each do |type|
39%   if sizes[type]
40#ifdef HAVE_TYPE_<%= type.tr_cpp %>
41    DEFINE_SIZE(<%= type %>);
42#endif
43%     next
44%   end
45%   cond = conditions[type]
46#if SIZEOF_<%= type.tr_cpp %> != 0<%= " && #{cond}" if cond %>
47    DEFINE(<%= type %>, <%= type.tr_cpp %>);
48#endif
49% end
50    OBJ_FREEZE(s);
51
52#undef DEFINE
53    Init_limits();
54}
55