zig

commit 58f0c8cfed1c8dd2fb29cf4a1807e6e0d239c006 (tree)
parent eb29737d5d77b195b1e030e6bcb99ed0e30ede33
Author: Ryan Liptak <squeek502@hotmail.com>
Date:   Sat, 20 Dec 2025 02:01:50 -0800

Fix logic for detecting zero buffer capacity in fileReadStreamingWindows/fileReadPositionalWindows

Diffstat:
M
lib/std/Io/Threaded.zig
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/std/Io/Threaded.zig b/lib/std/Io/Threaded.zig
@@ -6780,8 +6780,8 @@ fn fileReadStreamingWindows(userdata: ?*anyopaque, file: File, data: []const []u
 
     const DWORD = windows.DWORD;
     var index: usize = 0;
-    while (data[index].len == 0) index += 1;
-    if (index == 0) return 0;
+    while (index < data.len and data[index].len == 0) index += 1;
+    if (index == data.len) return 0;
     const buffer = data[index];
     const want_read_count: DWORD = @min(std.math.maxInt(DWORD), buffer.len);
 
@@ -6912,8 +6912,8 @@ fn fileReadPositionalWindows(userdata: ?*anyopaque, file: File, data: []const []
     const DWORD = windows.DWORD;
 
     var index: usize = 0;
-    while (data[index].len == 0) index += 1;
-    if (index == 0) return 0;
+    while (index < data.len and data[index].len == 0) index += 1;
+    if (index == data.len) return 0;
     const buffer = data[index];
     const want_read_count: DWORD = @min(std.math.maxInt(DWORD), buffer.len);