Fixes bug in makeMutableSlice for empty slices.

Felix "xq" Queißner · Felix "xq" Queißner · commit a031324ed955 · 2022-04-29T11:53:21.000+02:00
diff --git a/s2s.zig b/s2s.zig
@@ -330,7 +330,12 @@ fn recursiveDeserialize(stream: anytype, comptime T: type, allocator: ?std.mem.A
 }
 
 fn makeMutableSlice(comptime T: type, slice: []const T) []T {
-    return @intToPtr([*]T, @ptrToInt(slice.ptr))[0..slice.len];
+    if (slice.len == 0) {
+        var buf: [0]T = .{};
+        return &buf;
+    } else {
+        return @intToPtr([*]T, @ptrToInt(slice.ptr))[0..slice.len];
+    }
 }
 
 fn makeMutablePtr(comptime T: type, ptr: *const T) *T {

Original file line number	Diff line number	Diff line change
`@@ -330,7 +330,12 @@ fn recursiveDeserialize(stream: anytype, comptime T: type, allocator: ?std.mem.A`
`330`	`330`	`}`
`331`	`331`
`332`	`332`	`fn makeMutableSlice(comptime T: type, slice: []const T) []T {`
`333`		`- return @intToPtr([*]T, @ptrToInt(slice.ptr))[0..slice.len];`
	`333`	`+ if (slice.len == 0) {`
	`334`	`+ var buf: [0]T = .{};`
	`335`	`+ return &buf;`
	`336`	`+ } else {`
	`337`	`+ return @intToPtr([*]T, @ptrToInt(slice.ptr))[0..slice.len];`
	`338`	`+ }`
`334`	`339`	`}`
`335`	`340`
`336`	`341`	`fn makeMutablePtr(comptime T: type, ptr: const T) T {`