1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 /* PORTME: There might easily be alignment problems with some of these
23 #include <libpspp/compiler.h>
29 #pragma option -a- /* Turn off alignment. */
32 /* Find 64-bit floating-point type. */
35 #define FLT64_MAX FLT_MAX
36 #elif SIZEOF_DOUBLE == 8
38 #define FLT64_MAX DBL_MAX
39 #elif SIZEOF_LONG_DOUBLE == 8
40 #define flt64 long double
41 #define FLT64_MAX LDBL_MAX
43 #error Which one of your basic types is 64-bit floating point?
46 /* Figure out SYSMIS value for flt64. */
47 #include <libpspp/magic.h>
48 #if SIZEOF_DOUBLE == 8
49 #define second_lowest_flt64 second_lowest_value
51 #error Must define second_lowest_flt64 for your architecture.
54 /* Record Type 1: General Information. */
57 char rec_type[4] ; /* 00: Record-type code, "$FL2". */
58 char prod_name[60] ; /* 04: Product identification. */
59 int32_t layout_code ; /* 40: 2. */
60 int32_t nominal_case_size ; /* 44: Number of `value's per case.
61 Note: some systems set this to -1 */
62 int32_t compress ; /* 48: 1=compressed, 0=not compressed. */
63 int32_t weight_idx ; /* 4c: 1-based index of weighting var, or 0. */
64 int32_t case_cnt ; /* 50: Number of cases, -1 if unknown. */
65 flt64 bias ; /* 54: Compression bias (100.0). */
66 char creation_date[9] ; /* 5c: `dd mmm yy' creation date of file. */
67 char creation_time[8] ; /* 65: `hh:mm:ss' 24-hour creation time. */
68 char file_label[64] ; /* 6d: File label. */
69 char padding[3] ; /* ad: Ignored padding. */
70 } ATTRIBUTE((packed)) ;
72 /* Record Type 2: Variable. */
73 struct sysfile_variable
75 int32_t rec_type ; /* 2. */
76 int32_t type ; /* 0=numeric, 1-255=string width,
77 -1=continued string. */
78 int32_t has_var_label ; /* 1=has a variable label, 0=doesn't. */
79 int32_t n_missing_values ; /* Missing value code of -3,-2,0,1,2, or 3. */
80 int32_t print ; /* Print format. */
81 int32_t write ; /* Write format. */
82 char name[SHORT_NAME_LEN] ; /* Variable name. */
83 /* The rest of the structure varies. */
84 } ATTRIBUTE((packed)) ;