cmark

diff --git a/api_test/CMakeLists.txt b/api_test/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_executable(api_test
+  cplusplus.cpp
   harness.c
   harness.h
   main.c

diff --git a/api_test/cplusplus.cpp b/api_test/cplusplus.cpp
@@ -0,0 +1,15 @@
+#include <cstdlib>
+
+#include "cmark.h"
+
+#include "harness.h"
+
+extern "C" void
+test_cplusplus(test_batch_runner *runner)
+{
+    static const char md[] = "paragraph\n";
+    char *html = cmark_markdown_to_html(md, sizeof(md) - 1);
+    STR_EQ(runner, html, "<p>paragraph</p>\n", "libcmark works with C++");
+    free(html);
+}
+

diff --git a/api_test/harness.h b/api_test/harness.h
@@ -1,6 +1,10 @@
 #ifndef CMARK_API_TEST_HARNESS_H
 #define CMARK_API_TEST_HARNESS_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct {
 	int test_num;
 	int num_passed;
@@ -30,5 +34,9 @@ test_ok(test_batch_runner *runner);
 void
 test_print_summary(test_batch_runner *runner);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 

diff --git a/api_test/main.c b/api_test/main.c
@@ -10,6 +10,9 @@
 
 #define UTF8_REPL "\xEF\xBF\xBD"
 
+void
+test_cplusplus(test_batch_runner *runner);
+
 static const cmark_node_type node_types[] = {
 	CMARK_NODE_DOCUMENT,
 	CMARK_NODE_BLOCK_QUOTE,
@@ -608,6 +611,7 @@ int main() {
 	parser(runner);
 	render_html(runner);
 	utf8(runner);
+	test_cplusplus(runner);
 
 	test_print_summary(runner);
 	retval =  test_ok(runner) ? 0 : 1;