1 files changed, 25 insertions, 0 deletions
diff --git a/libcmap_find_codepoint_data.c b/libcmap_find_codepoint_data.c
new file mode 100644
index 0000000..cd2e52f
--- /dev/null
+++ b/libcmap_find_codepoint_data.c
@@ -0,0 +1,25 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+const struct libcmap_codepoint_data *
+libcmap_find_codepoint_data(uint32_t codepoint)
+{
+	size_t low = 0u, high = libcmap_codepoint_list_size - 1u;
+	size_t i;
+
+	while (low <= high) {
+		i = low + (high - low) / 2u;
+		if (libcmap_codepoint_list[i].range.last < codepoint) {
+			low = i + 1u;
+		} else if (libcmap_codepoint_list[i].range.first > codepoint) {
+			if (!high)
+				break;
+			high = i - 1u;
+		} else {
+			return &libcmap_codepoint_list[i].data[codepoint - libcmap_codepoint_list[i].range.first];
+		}
+	}
+
+	return NULL;	
+}