From f2b04e7514f68ab2878b2923eea431945c5ebe0e Mon Sep 17 00:00:00 2001
From: mykola2312 <49044616+mykola2312@users.noreply.github.com>
Date: Tue, 3 May 2022 07:18:21 +0300
Subject: [PATCH] struct 3

---
 struct.c | 29 +++++++++++++++++++++++++++++
 struct.h |  8 ++++++++
 2 files changed, 37 insertions(+)

diff --git a/struct.c b/struct.c
index 6477f7e..bf4a17c 100644
--- a/struct.c
+++ b/struct.c
@@ -1,3 +1,32 @@
 #include "struct.h"
+#include "cutil.h"
 
+uint struct_size(struct cu_struct_s* st, uint idx, uint8_t* in)
+{
+    struct cu_value_s* value = &st->members[idx];
+    switch (value->type)
+    {
+    case NoValue: return 0;
+    case Sequence: return value->sequence.size;
+    //case Array:
+    case Int8: return VALUE_INT8_SIZE;
+    case Int16: return VALUE_INT16_SIZE;
+    case Int32: return VALUE_INT32_SIZE;
+    case Int64: return VALUE_INT64_SIZE;
+    default: return 0;
+    }
+}
 
+uint struct_offset(struct cu_struct_s* st, uint idx, uint8_t* in)
+{
+    uint offset = 0;
+    do {
+        offset += struct_size(st, idx, in);
+    } while (idx--);
+    return offset;
+}
+
+uint struct_value(struct cu_struct_s* st, uint idx, uint8_t* in, uint8_t* out)
+{
+    
+}
diff --git a/struct.h b/struct.h
index 576adf3..4464d68 100644
--- a/struct.h
+++ b/struct.h
@@ -4,6 +4,11 @@
 #include "cutypes.h"
 #include "endian.h"
 
+#define VALUE_INT8_SIZE     sizeof(uint8_t)
+#define VALUE_INT16_SIZE    sizeof(uint16_t)
+#define VALUE_INT32_SIZE    sizeof(uint32_t)
+#define VALUE_INT64_SIZE    sizeof(uint64_t)
+
 enum cu_value_type_e {
     NoValue,
     Sequence,
@@ -55,6 +60,9 @@ struct cu_struct_s {
 typedef void (*cu_value_process_t)(struct cu_value_s* type,
     uint8_t* in, uint8_t* out);
 
+uint struct_size(struct cu_struct_s* st, uint idx, uint8_t* in);
+uint struct_offset(struct cu_struct_s* st, uint idx, uint8_t* in);
+uint struct_value(struct cu_struct_s* st, uint idx, uint8_t* in, uint8_t* out);
 void struct_process(struct cu_struct_s* st, cu_value_process_t p,
     uint8_t* in, uint8_t* out);