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- ULONG is always >= 0

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- Include limits.h to use ULONG_MAX instead of doing a cast

svn path=/trunk/; revision=25676
This commit is contained in:
Johannes Anderwald
2007-02-01 23:05:32 +00:00
parent a75eaa8433
commit 63da9a0fc7
1 changed files with 3 additions and 2 deletions
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reactos/drivers/base/beep/beep.c
+3 -2
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@@ -14,6 +14,7 @@
#include <ntddk.h>
#include <ntddbeep.h>
#include <limits.h>
#define NDEBUG
#include <debug.h>
@@ -183,7 +184,7 @@ BeepDeviceControl(PDEVICE_OBJECT DeviceObject,
DPRINT("Beep:\n Freq: %lu Hz\n Dur: %lu ms\n",
BeepParam->Frequency,
BeepParam->Duration);
if (BeepParam->Duration >= 0)
if (BeepParam->Duration > 0)
{
DueTime.QuadPart = (LONGLONG)BeepParam->Duration * -10000;
@@ -199,7 +200,7 @@ BeepDeviceControl(PDEVICE_OBJECT DeviceObject,
FALSE,
NULL);
}
else if (BeepParam->Duration == (ULONG)-1)
else if (BeepParam->Duration == ULONG_MAX)
{
if (DeviceExtension->BeepOn == TRUE)
{