====== OSA : OS_Flag_Check_AllOff ======
<color blue>**bool OS_Flag_Check_AllOff (flags, mask)**</color>\\ 
<color blue>**bool OS_Flag_Check_AllOff_I (flags, mask)**</color>\\ 
=== ===



Check if all //mask// bits in //flags// are cleared.

=== Call allowed: ===
Everywhere


=== Parameters: ===
{| class = "fpl"
|-
|//''flags''//
|Variable of ##[[en:osa:ref:description:data types#OST_FLAG|OST_FLAGx]]## (x = 8, 16, 32) type
|-
|//''mask''//
|Bit mask to operate on
|}


=== Returns: ===
{| class = "fpl"
|-
|//''false''//
| flags & mask != 0
|-
|//''true''//
| flags & mask == 0
|}


=== Example: ===
<code cpp>
OST_FLAG flag;

void Task (void)
{
    for (;;) {
        /*...*/
        OS_Flag_Check_AllOff (flag, 3); // check bits 0 and 1 are cleared
        /*...*/
    }
}
</code>


=== Old style name ===
<color gray>**OS_CheckAllFlagClear**</color>\\ 


<color gray>**OS_Flag_Check_AllOff**</color>\\ 





=== See also ===
  * [[en:osa:ref:allservices:OS_Flag_Create|OS_Flag_Create]]
  * [[en:osa:ref:allservices:OS_Flag_Init|OS_Flag_Init]]

  * [[en:osa:ref:allservices:OS_Flag_Set|OS_Flag_Set]]
  * [[en:osa:ref:allservices:OS_Flag_Clear|OS_Flag_Clear]]

  * [[en:osa:ref:allservices:OS_Flag_Check_AllOn|OS_Flag_Check_AllOn]]
  * [[en:osa:ref:allservices:OS_Flag_Check_On|OS_Flag_Check_On]]
  * [[en:osa:ref:allservices:OS_Flag_Check_Off|OS_Flag_Check_Off]]

  * [[en:osa:ref:allservices:OS_Flag_Wait_AllOn|OS_Flag_Wait_AllOn]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_On|OS_Flag_Wait_On]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_AllOff|OS_Flag_Wait_AllOff]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_Off|OS_Flag_Wait_Off]]

  * [[en:osa:ref:allservices:OS_Flag_Wait_AllOn_TO|OS_Flag_Wait_AllOn_TO]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_On_TO|OS_Flag_Wait_On_TO]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_AllOff_TO|OS_Flag_Wait_AllOff_TO]]
  * [[en:osa:ref:allservices:OS_Flag_Wait_Off_TO|OS_Flag_Wait_Off_TO]]

----
  * [[en:osa:ref:services:alphabetical|Alphabetical]]
  * [[en:osa:ref:services:brieflist|All services]]
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