X-Git-Url: https://pd.if.org/git/?p=lice;a=blobdiff_plain;f=tests%2Fvarargs.c;fp=tests%2Fvarargs.c;h=7cc88d98c61611a3e335c3e5974fdbcf5e3b664a;hp=0000000000000000000000000000000000000000;hb=b6a50b8be3d6a2e2d6624983f6bf1bf0c9f6802a;hpb=946bdbe1d5dd89ab671391fbe429a1c2c48ecaa7

diff --git a/tests/varargs.c b/tests/varargs.c
new file mode 100644
index 0000000..7cc88d9
--- /dev/null
+++ b/tests/varargs.c
@@ -0,0 +1,67 @@
+// stdarg
+
+#include <stdarg.h>
+char buffer[1024];
+
+void testi(int a, ...) {
+    va_list ap;
+    va_start(ap, a);
+    expecti(a,               1);
+    expecti(va_arg(ap, int), 2);
+    expecti(va_arg(ap, int), 3);
+    expecti(va_arg(ap, int), 4);
+    expecti(va_arg(ap, int), 5);
+
+    va_end(ap);
+}
+
+void testf(float a, ...) {
+    va_list ap;
+    va_start(ap, a);
+
+    expectf(a,                 1.0f);
+    expectf(va_arg(ap, float), 2.0f);
+    expectf(va_arg(ap, float), 4.0f);
+    expectf(va_arg(ap, float), 8.0f);
+
+    va_end(ap);
+}
+
+void testm(char *p, ...) {
+    va_list ap;
+    va_start(ap, p);
+
+    expectstr(p,                 "hello world");
+    expectf  (va_arg(ap, float),  3.14);
+    expecti  (va_arg(ap, int),    1024);
+    expectstr(va_arg(ap, char *), "good bye world");
+    expecti  (va_arg(ap, int),    2048);
+
+    va_end(ap);
+}
+
+char *format(char *fmt, ...) {
+    va_list ap;
+    va_start(ap, fmt);
+    vsprintf(buffer, fmt, ap); // fuck yeah
+    va_end(ap);
+    return buffer;
+}
+
+void testt(void) {
+    expectstr(format(""),        ""); // nothing
+    expectstr(format("%d", 10),  "10");
+    expectstr(
+        format("%d,%.1f,%d,%.1f,%s", 1024, 3.14, 2048, 6.28, "hello world"),
+        "1024,3.1,2048,6.3,hello world"
+    );
+}
+
+int main(void) {
+    testi(1, 2, 3, 4, 5);
+    testf(1.0f, 2.0f, 4.0f, 8.0f);
+    testm("hello world", 3.14, 1024, "good bye world", 2048);
+    testt();
+
+    return 0;
+}