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std: avoid an allocation in inner loop

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daurnimator 2020-01-10 15:03:51 +11:00
parent 6fb636050f
commit 03e1241b88
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1 changed files with 4 additions and 4 deletions
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8
lib/std/child_process.zig
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@ -634,12 +634,12 @@ pub const ChildProcess = struct {
var it = mem.tokenize(PATH, ";");
retry: while (it.next()) |search_path| {
const path_no_ext = try fs.path.join(self.allocator, &[_][]const u8{ search_path, app_name });
defer self.allocator.free(path_no_ext);
var ext_it = mem.tokenize(PATHEXT, ";");
while (ext_it.next()) |app_ext| {
const app_basename = try mem.concat(self.allocator, u8, &[_][]const u8{ app_name, app_ext });
defer self.allocator.free(app_basename);
const joined_path = try fs.path.join(self.allocator, &[_][]const u8{ search_path, app_basename });
const joined_path = try mem.concat(self.allocator, u8, &[_][]const u8{ path_no_ext, app_ext });
defer self.allocator.free(joined_path);
const joined_path_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, joined_path);