/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2009 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 <float.h>
#include <limits.h>
#include <stdlib.h>
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
#include <data/case.h>
#include <data/casereader.h>
#include <data/dictionary.h>
#include <data/procedure.h>
#include <data/settings.h>
+#include <data/short-names.h>
#include <data/value.h>
#include <data/variable.h>
#include <language/command.h>
#include <language/lexer/lexer.h>
#include <language/lexer/variable-parser.h>
-#include <libpspp/alloc.h>
#include <libpspp/array.h>
#include <libpspp/assertion.h>
#include <libpspp/message.h>
#include "intprops.h"
#include "minmax.h"
+#include "xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
{
struct pool *pool; /* Pool containing FLIP data. */
const struct variable **var; /* Variables to transpose. */
- int *idx_to_fv; /* var[]->index to compacted sink case fv. */
size_t var_cnt; /* Number of elements in `var'. */
int case_cnt; /* Pre-flip case count. */
- size_t case_size; /* Post-flip bytes per case. */
struct variable *new_names; /* Variable containing new variable names. */
struct varname *new_names_head; /* First new variable. */
struct flip_pgm *flip;
struct casereader *input, *reader;
union value *output_buf;
- struct ccase c;
+ struct ccase *c;
size_t i;
bool ok;
flip = pool_create_container (struct flip_pgm, pool);
flip->var = NULL;
- flip->idx_to_fv = dict_get_compacted_dict_index_to_case_index (dict);
- pool_register (flip->pool, free, flip->idx_to_fv);
flip->var_cnt = 0;
flip->case_cnt = 0;
flip->new_names = NULL;
{
lex_match (lexer, '=');
if (!parse_variables_const (lexer, dict, &flip->var, &flip->var_cnt,
- PV_NO_DUPLICATE))
+ PV_NO_DUPLICATE))
goto error;
lex_match (lexer, '/');
}
else
- dict_get_vars (dict, &flip->var, &flip->var_cnt, 1u << DC_SYSTEM);
+ dict_get_vars (dict, &flip->var, &flip->var_cnt, DC_SYSTEM);
pool_register (flip->pool, free, flip->var);
lex_match (lexer, '/');
}
}
- output_buf = pool_nalloc (flip->pool,
- flip->var_cnt, sizeof *output_buf);
+ output_buf = pool_nalloc (flip->pool, flip->var_cnt, sizeof *output_buf);
flip->file = pool_tmpfile (flip->pool);
if (flip->file == NULL)
flip->case_cnt = 1;
/* Read the active file into a flip_sink. */
- proc_make_temporary_transformations_permanent (ds);
proc_discard_output (ds);
input = proc_open (ds);
- while (casereader_read (input, &c))
+ while ((c = casereader_read (input)) != NULL)
{
- write_flip_case (flip, &c);
- case_destroy (&c);
+ write_flip_case (flip, c);
+ case_unref (c);
}
ok = casereader_destroy (input);
ok = proc_commit (ds) && ok;
proc_discard_active_file (ds);
goto error;
}
- flip->case_size = dict_get_case_size (dict);
/* Set up flipped data for reading. */
reader = casereader_create_sequential (NULL, dict_get_next_value_idx (dict),
- flip->case_cnt,
+ flip->var_cnt,
&flip_casereader_class, flip);
proc_set_active_file_data (ds, reader);
return lex_end_of_command (lexer);
return false;
}
- for (i = 0; i < flip->case_cnt; i++)
+ for (i = 0; i < flip->case_cnt - 1; i++)
{
struct variable *v;
char s[SHORT_NAME_LEN + 1];
if (flip->new_names != NULL)
{
struct varname *v = pool_alloc (flip->pool, sizeof *v);
- int fv = flip->idx_to_fv[var_get_dict_index (flip->new_names)];
v->next = NULL;
if (var_is_numeric (flip->new_names))
{
- double f = case_num_idx (c, fv);
+ double f = case_num (c, flip->new_names);
if (f == SYSMIS)
strcpy (v->name, "VSYSMIS");
else
{
int width = MIN (var_get_width (flip->new_names), MAX_SHORT_STRING);
- memcpy (v->name, case_str_idx (c, fv), width);
+ memcpy (v->name, case_str (c, flip->new_names), width);
v->name[width] = 0;
}
/* Write to external file. */
for (i = 0; i < flip->var_cnt; i++)
{
- double out;
-
- if (var_is_numeric (flip->var[i]))
- {
- int fv = flip->idx_to_fv[var_get_dict_index (flip->var[i])];
- out = case_num_idx (c, fv);
- }
- else
- out = SYSMIS;
+ const struct variable *v = flip->var[i];
+ double out = var_is_numeric (v) ? case_num (c, v) : SYSMIS;
fwrite (&out, sizeof out, 1, flip->file);
}
return true;
/* Allocate memory for many cases. */
case_bytes = flip->var_cnt * sizeof *input_buf;
- case_capacity = get_workspace () / case_bytes;
+ case_capacity = settings_get_workspace () / case_bytes;
if (case_capacity > flip->case_cnt * 2)
case_capacity = flip->case_cnt * 2;
if (case_capacity < 2)
for (j = 0; j < read_cases; j++)
output_buf[j] = input_buf[i + j * flip->var_cnt];
-#ifndef HAVE_FSEEKO
-#define fseeko fseek
-#endif
-
-#ifndef HAVE_OFF_T
-#define off_t long int
-#endif
-
if (fseeko (output_file,
sizeof *input_buf * (case_idx
+ (off_t) i * flip->case_cnt),
return true;
}
-/* Reads one case into C.
- Returns true if successful, false at end of file or if an
- I/O error occurred. */
-static bool
-flip_casereader_read (struct casereader *reader UNUSED, void *flip_,
- struct ccase *c)
+/* Reads and returns one case.
+ Returns a null pointer at end of file or if an I/O error occurred. */
+static struct ccase *
+flip_casereader_read (struct casereader *reader UNUSED, void *flip_)
{
struct flip_pgm *flip = flip_;
+ struct ccase *c;
size_t i;
if (flip->error || flip->cases_read >= flip->var_cnt)
- return false;
+ return NULL;
- case_create (c, flip->case_cnt);
+ c = case_create (flip->case_cnt);
for (i = 0; i < flip->case_cnt; i++)
{
double in;
if (fread (&in, sizeof in, 1, flip->file) != 1)
{
- case_destroy (c);
+ case_unref (c);
if (ferror (flip->file))
msg (SE, _("Error reading FLIP temporary file: %s."),
strerror (errno));
else
NOT_REACHED ();
flip->error = true;
- return false;
+ return NULL;
}
case_data_rw_idx (c, i)->f = in;
}
flip->cases_read++;
- return true;
+ return c;
}
/* Destroys the source.
projects / pspp-builds.git / blobdiff