/* PSPP - a program for statistical analysis.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <config.h>
-#include <libpspp/float-format.h>
+#include "libpspp/float-format.h"
+#include <byteswap.h>
#include <ctype.h>
#include <inttypes.h>
#include <stdlib.h>
+#include <string.h>
-#include <libpspp/assertion.h>
-#include <libpspp/integer-format.h>
-#include <libpspp/str.h>
+#include "libpspp/assertion.h"
+#include "libpspp/integer-format.h"
-#include "error.h"
-#include <byteswap.h>
+#include "gl/error.h"
\f
/* Neutral intermediate representation for binary floating-point numbers. */
struct fp
}
}
+/* Converts SRC from format FROM to a native double and returns
+ the double. */
+double
+float_get_double (enum float_format from, const void *src)
+{
+ double dst;
+ float_convert (from, src, FLOAT_NATIVE_DOUBLE, &dst);
+ return dst;
+}
+
/* Returns the number of bytes in a number in the given
FORMAT. */
size_t
}
return match_cnt;
}
+
+/* Returns the double value that is just greater than -DBL_MAX,
+ which in PSPP syntax files is called LOWEST and used as the
+ low end of numeric ranges that are supposed to be unbounded on
+ the low end, as in the missing value set created by,
+ e.g. MISSING VALUES X(LOWEST THRU 5). (-DBL_MAX is used for
+ SYSMIS so it is not available for LOWEST.) */
+double
+float_get_lowest (void)
+{
+ struct fp fp;
+ double x;
+
+ fp.class = LOWEST;
+ fp.sign = POSITIVE;
+ assemble_number (FLOAT_NATIVE_DOUBLE, &fp, &x);
+ return x;
+}
\f
/* Returns CNT bits in X starting from the given bit OFS. */
static inline uint64_t
break;
case FLOAT_Z_SHORT:
- put_uint64 (native_to_be32 (assemble_z (fp, 7, 24)), number);
+ put_uint32 (native_to_be32 (assemble_z (fp, 7, 24)), number);
break;
case FLOAT_Z_LONG:
put_uint64 (native_to_be64 (assemble_z (fp, 7, 56)), number);