Provided by: opencl-1.2-man-doc_1.0~svn22836-1.1_all bug


       clamp - Clamp x to range given by minval, maxval.

       gentype clamp(gentype x, gentype minval, gentype maxval);

       gentype clamp(gentype x, sgentype minval, sgentype maxval);


       clamp returns integerMax(3clc) (integerMax(3clc)( x, minval), maxval).

       Results are undefined if minval > maxval.


       Built-in integer functions take scalar or vector arguments. The vector versions of the
       integer functions operate component-wise. The description is per component.

       We use the generic type name gentype to indicate that the function can take char,
       char{2|3|4|8|16}, uchar, uchar{2|3|4|8|16}, short, short{2|3|4|8|16}, ushort,
       ushort{2|3|4|8|16}, int, int{2|3|4|8|16}, uint, uint{2|3|4|8|16}, long, long{2|3|4|8|16},
       ulong, or ulong{2|3|4|8|16} as the type for the arguments. We use the generic type name
       ugentype to refer to unsigned versions of gentype. For example, if gentype is char4,
       ugentype is uchar4.

       We also use the generic type name sgentype to indicate that the function can take a scalar
       data type i.e.  char, uchar, short, ushort, int, uint, long, or ulong as the type for the
       arguments. For built-in integer functions that take gentype and sgentype arguments, the
       gentype argument must be a vector or scalar version of the sgentype argument. For example,
       if sgentype is uchar, gentype must be uchar or uchar{2|3|4|8|16}. For vector versions,
       sgentype is implicitly widened to gentype as described in section 6.3.a of the OpenCL

       For any specific use of a function, the actual type has to be the same for all arguments
       and the return type unless otherwise specified.


       OpenCL Specification[1]




       The Khronos Group


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        1. OpenCL Specification
           page 256, section 6.12.3 - Integer Functions