Add C++ interop support.

1 files changed, 100 insertions, 0 deletions

diff --git a/src/codegen/compat.h b/src/codegen/compat.h
new file mode 100644
index 0000000..423b1d9
--- /dev/null
+++ b/src/codegen/compat.h
@@ -0,0 +1,100 @@
+
+#ifndef ZC_COMPAT_H
+#define ZC_COMPAT_H
+
+#ifdef __cplusplus
+/* C++ mode */
+#define ZC_AUTO auto
+#define ZC_CAST(T, x) static_cast<T>(x)
+#define ZC_REINTERPRET(T, x) reinterpret_cast<T>(x)
+#define ZC_EXTERN_C extern "C"
+#define ZC_EXTERN_C_BEGIN                                                                          \
+    extern "C"                                                                                     \
+    {
+#define ZC_EXTERN_C_END }
+#else
+/* C mode */
+#define ZC_AUTO __auto_type
+#define ZC_CAST(T, x) ((T)(x))
+#define ZC_REINTERPRET(T, x) ((T)(x))
+#define ZC_EXTERN_C
+#define ZC_EXTERN_C_BEGIN
+#define ZC_EXTERN_C_END
+#endif
+
+#ifdef __cplusplus
+#include <type_traits>
+
+inline const char *_zc_fmt(bool)
+{
+    return "%d";
+}
+inline const char *_zc_fmt(char)
+{
+    return "%c";
+}
+inline const char *_zc_fmt(signed char)
+{
+    return "%c";
+}
+inline const char *_zc_fmt(unsigned char)
+{
+    return "%u";
+}
+inline const char *_zc_fmt(short)
+{
+    return "%d";
+}
+inline const char *_zc_fmt(unsigned short)
+{
+    return "%u";
+}
+inline const char *_zc_fmt(int)
+{
+    return "%d";
+}
+inline const char *_zc_fmt(unsigned int)
+{
+    return "%u";
+}
+inline const char *_zc_fmt(long)
+{
+    return "%ld";
+}
+inline const char *_zc_fmt(unsigned long)
+{
+    return "%lu";
+}
+inline const char *_zc_fmt(long long)
+{
+    return "%lld";
+}
+inline const char *_zc_fmt(unsigned long long)
+{
+    return "%llu";
+}
+inline const char *_zc_fmt(float)
+{
+    return "%f";
+}
+inline const char *_zc_fmt(double)
+{
+    return "%f";
+}
+inline const char *_zc_fmt(char *)
+{
+    return "%s";
+}
+inline const char *_zc_fmt(const char *)
+{
+    return "%s";
+}
+inline const char *_zc_fmt(void *)
+{
+    return "%p";
+}
+
+#define _z_str(x) _zc_fmt(x)
+#endif
+
+#endif