Add metrics test file

src/test/c/c50-metrics.c

@@ -0,0 +1,94 @@
+#include "unused1.h"
+#include "unused2.h"
+// Comment
+
+/*
+ * Block comment
+ */
+
+//-100 character line-------------------------------------------------------------------------------
+
+extern puts(char *s);
+
+#define tripleprint(x) do { \
+	puts(x); \
+	puts(x); \
+	puts(x); \
+} while (0);
+
+char *a = " string";
+
+#if !defined(MACROS)
+#define PI 3.14
+#define sqr(x) (x * x)
+#define MACROS 1
+#endif
+
+static int s, s2;
+extern int open(char *s, int m);
+
+int
+fun(int param1, int param2)
+{
+	int fd = open("foo", 0);
+
+	// Line comment
+#define ONE 1
+#ifdef ndef
+unprocessed
+#endif
+	int a = ONE + 2;
+	int b = 1 + 2;
+	char c = 'A' + '!';
+	s = "hello";
+	if (a && b)
+		if (c)
+			a = 0;
+		else
+			b = 0;
+
+	do {
+		int k;
+		for (k = 0; k < 10; k++) {
+			int q = ((((k))));
+		}
+	} while (0);
+
+	while (1)
+		b++;
+
+	switch (a) {
+	case 1:
+	case 2:
+		break;
+	case 3:
+	default:
+		;
+	}
+	tripleprint("hello, world\n");
+	tripleprint("hello, world\n");
+again:
+	goto again;
+	int i;
+	for (i = 0; i < 10; i++)
+		continue;
+	goto again;
+	return 42;
+}
+
+static int fun2(void) { return fun() + 3; }
+
+struct point {
+	int x;
+	int y;
+};
+
+#define PASTE2(x, y) x ## y
+#define PASTE3(x, y, z) x ## y ## z
+enum a {PASTE2(BE, GIN), END};
+int PASTE2(in, teger);
+
+#define STRINGDEF(name) char *name = #name
+
+STRINGDEF(astring);
+STRINGDEF(another_string);