timestamp_t: a new data type for timestamps

Git's source code assumes that unsigned long is at least as precise as
time_t. Which is incorrect, and causes a lot of problems, in particular
where unsigned long is only 32-bit (notably on Windows, even in 64-bit
versions).

So let's just use a more appropriate data type instead. In preparation
for this, we introduce the new `timestamp_t` data type.

By necessity, this is a very, very large patch, as it has to replace all
timestamps' data type in one go.

As we will use a data type that is not necessarily identical to `time_t`,
we need to be very careful to use `time_t` whenever we interact with the
system functions, and `timestamp_t` everywhere else.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/vcs-svn/svndump.c b/vcs-svn/svndump.c
index e4b395963b..1846685a21 100644
--- a/vcs-svn/svndump.c
+++ b/vcs-svn/svndump.c
@@ -47,7 +47,7 @@ static struct {
 
 static struct {
 	uint32_t revision;
-	unsigned long timestamp;
+	timestamp_t timestamp;
 	struct strbuf log, author, note;
 } rev_ctx;