Convert COMPILE_ASSERT to static_assert

util/file/file_writer.cc

Index: util/file/file_writer.cc
diff --git a/util/file/file_writer.cc b/util/file/file_writer.cc
index 703a88291a5140e510c73b54783b99a3334a8995..487427ae7c07ba30be8fdc514bfc1cfd0f1fb0c2 100644
--- a/util/file/file_writer.cc
+++ b/util/file/file_writer.cc
@@ -25,11 +25,11 @@
 namespace crashpad {
 
 // Ensure type compatibility between WritableIoVec and iovec.
-COMPILE_ASSERT(sizeof(WritableIoVec) == sizeof(iovec), WritableIoVec_size);
-COMPILE_ASSERT(offsetof(WritableIoVec, iov_base) == offsetof(iovec, iov_base),
-               WritableIoVec_base_offset);
-COMPILE_ASSERT(offsetof(WritableIoVec, iov_len) == offsetof(iovec, iov_len),
-               WritableIoVec_len_offset);
+static_assert(sizeof(WritableIoVec) == sizeof(iovec), "WritableIoVec size");
+static_assert(offsetof(WritableIoVec, iov_base) == offsetof(iovec, "iov base"),

[Mark Mentovai, 2014/10/01 03:55:12]

You changed the wrong parameter.

../../util/file/file_writer.cc:29:68: error: expected identifier
static_assert(offsetof(WritableIoVec, iov_base) == offsetof(iovec, "iov base"),
                                                                   ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include/stddef.h:87:46:
note: expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)

Same on line 31.

[scottmg, 2014/10/01 16:37:18]

Done.

+              WritableIoVec_base_offset);
+static_assert(offsetof(WritableIoVec, iov_len) == offsetof(iovec, "iov len"),
+              WritableIoVec_len_offset);
 
 FileWriter::FileWriter() : fd_() {
 }