/dt><dd>previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters. </dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>MUST REMAIN UNCHANGED: <b>osSignalClear</b> shall be consistent in every CMSIS-RTOS.</dd></dl>
<p>Clear the signal flags of an active thread. This function may be used also within interrupt service routines. </p>

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