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