1 files changed, 70 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/include/diplomat_runtime.h b/intl/icu_capi/cpp/include/diplomat_runtime.h
new file mode 100644
index 0000000000..de0f9c76fe
--- /dev/null
+++ b/intl/icu_capi/cpp/include/diplomat_runtime.h
@@ -0,0 +1,70 @@
+#ifndef DIPLOMAT_RUNTIME_C_H
+#define DIPLOMAT_RUNTIME_C_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+// uchar.h doesn't always exist, but char32_t is always available
+// in C++ anyway
+#ifndef __cplusplus
+#ifdef __APPLE__
+#include <stdint.h>
+typedef uint16_t char16_t;
+typedef uint32_t char32_t;
+#else
+#include <uchar.h>
+#endif
+#endif
+
+
+#ifdef __cplusplus
+namespace capi {
+extern "C" {
+#endif
+
+typedef struct DiplomatWriteable {
+    void* context;
+    char* buf;
+    size_t len;
+    size_t cap;
+    void (*flush)(struct DiplomatWriteable*);
+    bool (*grow)(struct DiplomatWriteable*, size_t);
+} DiplomatWriteable;
+
+DiplomatWriteable diplomat_simple_writeable(char* buf, size_t buf_size);
+
+typedef struct DiplomatStringView {
+    const char* data;
+    size_t len;
+} DiplomatStringView;
+
+#define MAKE_SLICE_VIEW(name, c_ty) \
+    typedef struct Diplomat##name##View { \
+        const c_ty* data; \
+        size_t len; \
+    } Diplomat##name##View;
+
+MAKE_SLICE_VIEW(I8, int8_t)
+MAKE_SLICE_VIEW(U8, uint8_t)
+MAKE_SLICE_VIEW(I16, int16_t)
+MAKE_SLICE_VIEW(U16, uint16_t)
+MAKE_SLICE_VIEW(I32, int32_t)
+MAKE_SLICE_VIEW(U32, uint32_t)
+MAKE_SLICE_VIEW(I64, int64_t)
+MAKE_SLICE_VIEW(U64, uint64_t)
+MAKE_SLICE_VIEW(Isize, intptr_t)
+MAKE_SLICE_VIEW(Usize, size_t)
+MAKE_SLICE_VIEW(F32, float)
+MAKE_SLICE_VIEW(F64, double)
+MAKE_SLICE_VIEW(Bool, bool)
+MAKE_SLICE_VIEW(Char, char32_t)
+
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace capi
+#endif
+
+#endif