[haiku-bugs] Re: [Haiku] #6417: __printf_fphex crashes in haiku
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Mon, 02 Aug 2010 17:45:51 -0000
#6417: __printf_fphex crashes in haiku
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Reporter: MrSunshine | Owner: zooey
Type: bug | Status: closed
Priority: normal | Milestone: R1
Component: System/libroot.so | Version: R1/Development
Resolution: invalid | Keywords:
Blocked By: | Has a Patch: 0
Platform: All | Blocking:
--------------------------------+-------------------------------------------
Changes (by bonefish):
* status: assigned => closed
* resolution: => invalid
Comment:
The first format specification is `%x`, which expects a signed or unsigned
int, but the respective argument is `0.2f`, which is a float. The float
gets converted to double when passed via varargs, so this has indeed a
good chance to crash on any system where `sizeof(int) != sizeof(double)`,
since part of the double argument will be interpreted as a string pointer.
BTW, `-Wall` is your friend.
--
Ticket URL: <http://dev.haiku-os.org/ticket/6417#comment:4>
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