From: Dan Albert <danalbert@google.com>
Date: Tue, 15 Jan 2019 19:16:25 +0000 (+0000)
Subject: Fix size_t/off_t mixup in std::filesystem.
X-Git-Tag: llvmorg-8.0.0-rc1~133
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=45b511fb05f9073d72c1511bebd772f8e9dd6f35;p=platform%2Fupstream%2Fllvm.git

Fix size_t/off_t mixup in std::filesystem.

Summary: ftruncate takes an off_t, not a size_t.

Reviewers: EricWF, mclow.lists

Reviewed By: EricWF

Subscribers: christof, ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D56578

llvm-svn: 351226
---

diff --git a/libcxx/src/filesystem/operations.cpp b/libcxx/src/filesystem/operations.cpp
index e3bbc7b..b410618 100644
--- a/libcxx/src/filesystem/operations.cpp
+++ b/libcxx/src/filesystem/operations.cpp
@@ -439,7 +439,8 @@ file_status posix_lstat(path const& p, error_code* ec) {
   return posix_lstat(p, path_stat, ec);
 }
 
-bool posix_ftruncate(const FileDescriptor& fd, size_t to_size, error_code& ec) {
+// http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html
+bool posix_ftruncate(const FileDescriptor& fd, off_t to_size, error_code& ec) {
   if (::ftruncate(fd.fd, to_size) == -1) {
     ec = capture_errno();
     return true;