#include <math.h>
#include <stdbool.h>
-#include <data/calendar.h>
-#include <data/case.h>
-#include <data/data-in.h>
-#include <data/data-out.h>
-#include <data/dictionary.h>
-#include <data/procedure.h>
-#include <data/settings.h>
-#include <data/value.h>
-#include <data/variable.h>
-#include <data/vector.h>
-#include <language/expressions/public.h>
-#include <libpspp/compiler.h>
-#include <libpspp/message.h>
-#include <libpspp/misc.h>
-#include <libpspp/str.h>
-#include <math/moments.h>
-#include <math/random.h>
+#include "data/calendar.h"
+#include "data/case.h"
+#include "data/data-in.h"
+#include "data/data-out.h"
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/settings.h"
+#include "data/value.h"
+#include "data/variable.h"
+#include "data/vector.h"
+#include "language/expressions/public.h"
+#include "libpspp/compiler.h"
+#include "libpspp/i18n.h"
+#include "libpspp/message.h"
+#include "libpspp/misc.h"
+#include "libpspp/str.h"
+#include "math/moments.h"
+#include "math/random.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
extern const struct substring empty_string;
-int compare_string (const struct substring *, const struct substring *);
+int compare_string_3way (const struct substring *, const struct substring *);
double expr_ymd_to_date (double year, double month, double day);
double expr_ymd_to_ofs (double year, double month, double day);
double idf_fdist (double P, double a, double b);
+double round_nearest (double x, double mult, double fuzzbits);
+double round_zero (double x, double mult, double fuzzbits);
+
+struct substring replace_string (struct expression *,
+ struct substring haystack,
+ struct substring needle,
+ struct substring replacement,
+ double n);
+
+double median (double *, size_t n);
+
#endif /* expressions/helpers.h */