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Check whether all elements of a boolean vector are true.


bool all( bvec x );


x - Specifies the vector to be tested for truth.


 all returns true if all elements of x are true and false otherwise. It is functionally equivalent to:

   bool all(bvec x)       // bvec can be bvec2, bvec3 or bvec4
       bool result = true;
       int i;
       for (i = 0; i < x.length(); ++i)
           result &= x[i];
       return result;

Version Support[edit]

all 1.1+

See Also[edit]

 any , not 


Copyright© 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.