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
|
{% skip_file if flag?(:win32) || flag?(:aarch64) %}
require "./spec_helper"
describe VaList do
it "works with C code", tags: %w[slow] do
compile_and_run_source_with_c(
%(
#include <stdarg.h>
extern int foo_f(int,...);
int foo() {
return foo_f(3,1,2,3);
}
int read_arg(va_list *ap) {
return va_arg(*ap, int);
}
),
%(
lib LibFoo
fun foo : LibC::Int
fun read_arg(ap : LibC::VaList*) : LibC::Int
end
fun foo_f(count : LibC::Int, ...) : LibC::Int
sum = 0
VaList.open do |list|
ap = list.to_unsafe
count.times do |i|
sum += LibFoo.read_arg(pointerof(ap))
end
end
sum
end
puts LibFoo.foo
)) do |status, output|
status.success?.should be_true
output.to_i.should eq(6)
end
end
end
|
