Method front

include/ceres/internal/fixed_array.h:229–229

FixedArray::front() Returns a reference to the first element of the fixed array.

  //
  // Returns a reference to the first element of the fixed array.
  reference front() { return *begin(); }

  // Overload of FixedArray::front() to return a reference to the first element
  // of a fixed array of const values.