Simple testcase for __LINE__, __FILE__ as well as #line.

test/val/bug1573.c

@@ -0,0 +1,81 @@
+/* Tests for predefined macros __LINE__ and __FILE__ as well as #line control */
+
+#include <stdio.h>
+#include <string.h>
+
+static int failures = 0;
+
+#if !defined __LINE__
+#error __LINE__ is not predefined!
+#endif
+
+#if !defined __FILE__
+#error __FILE__ is not predefined!
+#endif
+
+#define CONCAT(a,b)       CONCAT_impl_(a,b)
+#define CONCAT_impl_(a,b) a##b
+#define MKSTR(a)          MKSTR_impl_(a)
+#define MKSTR_impl_(a)    #a
+char CONCAT(ident,__LINE__)[0+__LINE__];
+char CONCAT(ident,__LINE__)[0+__LINE__];
+
+#define GET_FILE()        __FILE__
+#define THIS_FILENAME_1   "bug1573.c"
+#define THIS_FILENAME_2   "<<bar>>"
+#define INC_FILENAME_1    "bug1573.h"
+#define INC_FILENAME_2    "<<foo>>"
+
+#line __LINE__ THIS_FILENAME_1      /* Note: #line sets the line number of the NEXT line */
+void foo(void)
+{
+    if (strcmp (GET_FILE(), THIS_FILENAME_1) != 0) {
+        printf("Expected: %s, got: %s\n", THIS_FILENAME_1, GET_FILE());
+        ++failures;
+    }
+}
+
+#line __LINE__ THIS_FILENAME_2      /* Note: #line sets the line number of the NEXT line */
+#include INC_FILENAME_1
+long line2 = __LINE__;
+
+int main(void)
+{
+    if (strcmp (filename1, INC_FILENAME_1) != 0) {
+        printf("Expected filename1: %s, got: %s\n", INC_FILENAME_1, filename1);
+        ++failures;
+    }
+
+    if (strcmp (filename2, INC_FILENAME_2) != 0) {
+        printf("Expected filename2: %s, got: %s\n", INC_FILENAME_2, filename2);
+        ++failures;
+    }
+
+    foo();
+
+#line 65535
+    if (strcmp (GET_FILE(), THIS_FILENAME_2) != 0) {
+        printf("Expected: %s, got: %s\n", THIS_FILENAME_2, GET_FILE());
+        ++failures;
+    }
+
+    if (line1 != 5L) {
+        printf("Expected line1: %ld, got: %ld\n", 5L, line1);
+        ++failures;
+    }
+
+    if (line2 != 38L) {
+        printf("Expected line2: %ld, got: %ld\n", 38L, line2);
+        ++failures;
+    }
+
+    if (strcmp (ans1, ans2) != 0 || strcmp (ans1, "42") != 0) {
+        ++failures;
+        printf("Expected: 42, ans1: %s, ans2: %s\n", ans1, ans2);
+    }
+
+    if (failures != 0) {
+        printf("Failures: %d\n", failures);
+    }
+    return failures;
+}

test/val/bug1573.h

@@ -0,0 +1,14 @@
+/* Tests for predefined macros __LINE__ and __FILE__ as well as #line control */
+
+#line __LINE__ INC_FILENAME_1
+#define GET_LINE() __LINE__
+char filename1[] = GET_FILE();
+long line1 = GET_LINE();
+
+#line 42
+const char ans1[] = MKSTR(GET_LINE());
+
+#line 40 INC_FILENAME_2
+char filename2[] = GET_FILE();
+const char ans2[] = \
+MKSTR(GET_LINE());