Fix “char promoted to int when passed through ...”

2 files changed, 5 insertions, 5 deletions

diff --git a/spec/ffi/fixtures/FunctionTest.c b/spec/ffi/fixtures/FunctionTest.c
index 6dfbeec..1dd9185 100644
--- a/spec/ffi/fixtures/FunctionTest.c
+++ b/spec/ffi/fixtures/FunctionTest.c
@@ -62,10 +62,10 @@ void testBlockingClose(struct testBlockingData *self) {
     free(self);
 }
 
-static char sum_varargs(va_list args) {
+static int sum_varargs(va_list args) {
     char sum = 0;
-    char arg;
-    while ((arg = va_arg(args, char)) != 0) {
+    int arg;
+    while ((arg = va_arg(args, int)) != 0) {
         sum += arg;
     }
     va_end(args);
diff --git a/spec/ffi/variadic_spec.rb b/spec/ffi/variadic_spec.rb
index 1b42266..0f1e077 100644
--- a/spec/ffi/variadic_spec.rb
+++ b/spec/ffi/variadic_spec.rb
@@ -36,8 +36,8 @@ describe "Function with variadic arguments" do
     handle = LibTest.testBlockingOpen
     expect(handle).not_to be_null
     begin
-      thWR = Thread.new { LibTest.testBlockingWRva(handle, 63, :char, 40, :char, 23, :char, 0) }
-      thRW = Thread.new { LibTest.testBlockingRWva(handle, 64, :char, 40, :char, 24, :char, 0) }
+      thWR = Thread.new { LibTest.testBlockingWRva(handle, 63, :int, 40, :int, 23, :int, 0) }
+      thRW = Thread.new { LibTest.testBlockingRWva(handle, 64, :int, 40, :int, 24, :int, 0) }
       expect(thWR.value).to eq(64)
       expect(thRW.value).to eq(63)
     ensure