input buffer, dynamic array

1 files changed, 61 insertions, 0 deletions

diff --git a/source/kit/array_ref.h b/source/kit/array_ref.h
new file mode 100644
index 0000000..649af8b
--- /dev/null
+++ b/source/kit/array_ref.h
@@ -0,0 +1,61 @@
+#ifndef KIT_ARRAY_REF_H
+#define KIT_ARRAY_REF_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int (*ar_compare_fn)(void const *left, void const *right);
+
+_Bool ar_equal_bytes(ptrdiff_t left_element_size, ptrdiff_t left_size,
+                     void const *left_data,
+                     ptrdiff_t   right_element_size,
+                     ptrdiff_t right_size, void const *right_data);
+
+int ar_compare(ptrdiff_t left_element_size, ptrdiff_t left_size,
+               void const *left_data, ptrdiff_t right_element_size,
+               ptrdiff_t right_size, void const *right_data,
+               ar_compare_fn compare);
+
+#define AR(name_, type_) \
+  struct {               \
+    ptrdiff_t size;      \
+    type_    *values;    \
+  } name_
+
+#define AR_CONST(name_, type_) \
+  struct {                     \
+    ptrdiff_t    size;         \
+    type_ const *values;       \
+  } name_
+
+#define AR_TYPE(name_, element_type_) \
+  struct name_ {                      \
+    ptrdiff_t      size;              \
+    element_type_ *values;            \
+  }
+
+#define AR_TYPE_CONST(name_, element_type_) \
+  struct name_ {                            \
+    ptrdiff_t            size;              \
+    element_type_ const *values;            \
+  }
+
+#define AR_EQUAL(left_, right_)                              \
+  ar_equal_bytes(sizeof((left_).values[0]), (left_).size,    \
+                 (left_).values, sizeof((right_).values[0]), \
+                 (right_).size, (right_).values)
+
+#define AR_COMPARE(left_, right_, compare_)              \
+  ar_compare(sizeof((left_).values[0]), (left_).size,    \
+             (left_).values, sizeof((right_).values[0]), \
+             (right_).size, (right_).values,             \
+             (ar_compare_fn) (compare_))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif