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Fix undefined behavior

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Fixes #950.
This commit is contained in:
Camilla Löwy
2017-02-16 05:23:10 +01:00
parent f69829f7b4
commit 980f955f6c
3 changed files with 24 additions and 13 deletions
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11
src/cocoa_monitor.m
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@@ -215,15 +215,20 @@ void _glfwPollMonitorsNS(void)
{
uint32_t i, j, displayCount, disconnectedCount;
CGDirectDisplayID* displays;
_GLFWmonitor** disconnected;
_GLFWmonitor** disconnected = NULL;
CGGetOnlineDisplayList(0, NULL, &displayCount);
displays = calloc(displayCount, sizeof(CGDirectDisplayID));
CGGetOnlineDisplayList(displayCount, displays, &displayCount);
disconnectedCount = _glfw.monitorCount;
disconnected = calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
memcpy(disconnected, _glfw.monitors, _glfw.monitorCount * sizeof(_GLFWmonitor*));
if (disconnectedCount)
{
disconnected = calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
memcpy(disconnected,
_glfw.monitors,
_glfw.monitorCount * sizeof(_GLFWmonitor*));
}
for (i = 0; i < displayCount; i++)
{