From 66ffa8e6ea83f94d080171589675279671b5f175 Mon Sep 17 00:00:00 2001
From: Kirill Petrashin <kirill8201@yandex.ru>
Date: Sat, 4 Apr 2026 15:44:27 +0300
Subject: Error out on failure to realloc the stack

---
 map.c   | 4 ++--
 stack.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/map.c b/map.c
index c46c7db..a433dc0 100644
--- a/map.c
+++ b/map.c
@@ -142,7 +142,7 @@ Map rbt_maze_map(size_t width, size_t height, unsigned int seed) {
     visited_clear(visited, width, height);
 
     PositionStack ps = ps_new();
-    if (ps_push(&ps, beginning_cell) == -1) error("Is the STACK_SIZE zero?");
+    ps_push(&ps, beginning_cell);
     visited[beginning_cell.y][beginning_cell.x] = 1;
 
     Position na[4];
@@ -154,7 +154,7 @@ Map rbt_maze_map(size_t width, size_t height, unsigned int seed) {
         if (nc > 0) {
             Position next = na[rand() % nc];
             Position prev = ps_peek(ps);
-            if (ps_push(&ps, next) == -1) error("Stack overflow in rbt_maze_map(). Recompile with bigger STACK_SIZE or decrease the map size\n");
+            ps_push(&ps, next);
             visited[next.y][next.x] = 1;
             map[(next.y * 2 + prev.y * 2) / 2][(next.x * 2 + prev.x * 2) / 2] = EMPTY;
         } else {
diff --git a/stack.c b/stack.c
index 8b4c478..d13749e 100644
--- a/stack.c
+++ b/stack.c
@@ -15,7 +15,7 @@ PositionStack ps_new(void) {
 int ps_push(PositionStack *ps, Position pos) {
     if (ps->top >= ps->capacity) {
         ps->capacity *= STACK_SIZE_COEFFICIENT;
-        if ((ps->arr = realloc(ps->arr, sizeof(Position) * ps->capacity)) == NULL) return -1;
+        if ((ps->arr = realloc(ps->arr, sizeof(Position) * ps->capacity)) == NULL) error("Failed to realloc ps->arr\n");
     }
     ps->arr[ps->top] = pos;
     ps->top += 1;
-- 
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