Class unsupported_extension_error

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## Class unsupported_extension_error

boost::compute::unsupported_extension_error — Exception thrown when attempting to use an unsupported OpenCL extension.

## Synopsis

    // In header: <boost/compute/exception/unsupported_extension_error.hpp>

    class unsupported_extension_error : public exception {
    public:
      // construct/copy/destruct
      explicit unsupported_extension_error(const char *);
      ~unsupported_extension_error();

      // public member functions
      std::string extension_name() const;
      const char * what() const;
    };

## Description

This exception is thrown when the user attempts to use an OpenCL extension which is not supported on the platform and/or device.

An example of this is attempting to use CL-GL sharing on a non-GPU device.

See Also:

opencl_error

### `unsupported_extension_error` public construct/copy/destruct

1.     explicit unsupported_extension_error(const char * extension);

   Creates a new unsupported extension error exception object indicating that `extension` is not supported by the OpenCL platform or device.

2.     ~unsupported_extension_error();

   Destroys the unsupported extension error object.

### `unsupported_extension_error` public member functions

1.     std::string extension_name() const;

   Returns the name of the unsupported extension.

2.     const char * what() const;

   Returns a string containing a human-readable error message containing the name of the unsupported exception.