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- /* Author: B. Gough and G. Jungman
- * RCS: $Id: gsl_mode.h,v 1.1 1998/12/15 17:46:24 jungman Exp $
- */
- #ifndef GSL_MODE_H
- #define GSL_MODE_H
-
-
- /* Some functions can take a mode argument. This
- * is a rough method to do things like control
- * the precision of the algorithm. This mainly
- * occurs in special functions, but we figured
- * it was ok to have a general facility.
- *
- * The mode type is 32-bit field. Most of
- * the fields are currently unused. Users
- * '|' various predefined constants to get
- * a desired mode.
- */
- typedef unsigned int gsl_mode_t;
-
-
- /* Here are the predefined constants.
- * Note that the precision constants
- * are special because they are used
- * to index arrays, so do not change
- * them. The precision information is
- * in the low order 3 bits of gsl_mode_t
- * (the third bit is currently unused).
- */
-
- /* Note that "0" is double precision,
- * so that you get that by default if
- * you forget a flag.
- */
- #define GSL_PREC_DOUBLE 0
- #define GSL_PREC_SINGLE 1
- #define GSL_PREC_APPROX 2
-
- #ifdef HAVE_INLINE
- inline unsigned int
- GSL_MODE_PREC(gsl_mode_t mt)
- { return (mt & (unsigned int)7); }
- #else
- #define GSL_MODE_PREC(mt) ((mt) & (unsigned int)7)
- #endif
-
-
-
- /* Here are some predefined generic modes.
- */
- #define GSL_MODE_DEFAULT 0
-
-
- #endif /* !GSL_MODE_H */
-