From 12590533a76734b0cf8ec5e84dedca166b3cc055 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Sat, 23 Aug 2025 21:06:16 +0200
Subject: [PATCH] Rename: read_ptr -> idx

---
 stack.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/stack.c b/stack.c
index 80f8b3a..b60f392 100644
--- a/stack.c
+++ b/stack.c
@@ -16,10 +16,10 @@
 #endif
 
 typedef struct {
-    uint8_t *buf;      //!< Pointer to the internal buffer
-    size_t   buf_sz;   //!< The length of the allocated buffer, in bytes
-    size_t   read_ptr; //!< Indicates where to read/write
-    size_t   item_sz;  //!< The size of the contained item, in bytes
+    uint8_t *buf;     //!< Pointer to the internal buffer
+    size_t   buf_sz;  //!< The length of the allocated buffer, in bytes
+    size_t   idx;     //!< Indicates where to read/write
+    size_t   item_sz; //!< The size of the contained item, in bytes
 } Stack;
 
 typedef enum {
@@ -38,7 +38,7 @@ MUST_CHECK StackResult stack_push(Stack *stack, const void *value);
 MUST_CHECK StackResult stack_pop(Stack *stack, void *dest);
 
 static inline size_t stack_length(Stack *stack) {
-    return (stack->read_ptr / stack->item_sz);
+    return (stack->idx / stack->item_sz);
 }
 
 static inline size_t stack_capacity(Stack *stack) {
@@ -46,11 +46,11 @@ static inline size_t stack_capacity(Stack *stack) {
 }
 
 static inline bool stack_full(Stack *stack) {
-    return (stack->buf_sz == stack->read_ptr);
+    return (stack->buf_sz == stack->idx);
 }
 
 static inline bool stack_empty(Stack *stack) {
-    return (stack->read_ptr < stack->item_sz);
+    return (stack->idx < stack->item_sz);
 }
 
 #endif // STACK_H
@@ -73,7 +73,7 @@ StackResult stack_init_raw(Stack *stack, uint8_t *buf, size_t buf_sz, size_t ite
 
     stack->buf_sz = buf_sz;
     stack->item_sz = item_sz;
-    stack->read_ptr = 0;
+    stack->idx = 0;
 
     memset(stack->buf, 0, buf_sz);
 
@@ -90,7 +90,7 @@ StackResult stack_resize(Stack *stack, size_t capacity) {
 }
 
 uint8_t *stack_resize_raw(Stack *stack, uint8_t *new_buf, size_t buf_sz) {
-    if (stack->read_ptr > buf_sz)
+    if (stack->idx > buf_sz)
         return NULL;
 
     uint8_t *old_buf = stack->buf;
@@ -103,21 +103,21 @@ uint8_t *stack_resize_raw(Stack *stack, uint8_t *new_buf, size_t buf_sz) {
 }
 
 StackResult stack_push(Stack *stack, const void *value) {
-    if (stack->read_ptr + stack->item_sz > stack->buf_sz)
+    if (stack->idx + stack->item_sz > stack->buf_sz)
         return StackFull;
 
-    memcpy((char *)stack->buf + stack->read_ptr, value, stack->item_sz);
-    stack->read_ptr += stack->item_sz;
+    memcpy((char *)stack->buf + stack->idx, value, stack->item_sz);
+    stack->idx += stack->item_sz;
 
     return Ok;
 }
 
 StackResult stack_pop(Stack *stack, void *dest) {
-    if (stack->read_ptr < stack->item_sz)
+    if (stack->idx < stack->item_sz)
         return StackEmpty;
 
-    stack->read_ptr -= stack->item_sz;
-    memcpy(dest, (char *)stack->buf + stack->read_ptr, stack->item_sz);
+    stack->idx -= stack->item_sz;
+    memcpy(dest, (char *)stack->buf + stack->idx, stack->item_sz);
 
     return Ok;
 }
@@ -128,7 +128,7 @@ StackResult stack_destroy(Stack *stack) {
     stack->buf = NULL;
     stack->buf_sz = 0;
     stack->item_sz = 0;
-    stack->read_ptr = 0;
+    stack->idx = 0;
 
     return Ok;
 }