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>
26 /* This attribute might avoid some problems. On the other hand... */
27 #define P ATTRIBUTE ((packed))
30 #pragma option -a- /* Turn off alignment. */
33 /* Find 32-bit signed integer type. */
38 #elif SIZEOF_LONG == 4
41 #error Which one of your basic types is 32-bit signed integer?
44 /* Find 64-bit floating-point type. */
47 #define FLT64_MAX FLT_MAX
48 #elif SIZEOF_DOUBLE == 8
50 #define FLT64_MAX DBL_MAX
51 #elif SIZEOF_LONG_DOUBLE == 8
52 #define flt64 long double
53 #define FLT64_MAX LDBL_MAX
55 #error Which one of your basic types is 64-bit floating point?
57 #define FLT64_MAX DBL_MAX
60 /* Figure out SYSMIS value for flt64. */
61 #include <libpspp/magic.h>
62 #if SIZEOF_DOUBLE == 8
63 #define second_lowest_flt64 second_lowest_value
65 #error Must define second_lowest_flt64 for your architecture.
68 /* Record Type 1: General Information. */
71 char rec_type[4] P; /* 00: Record-type code, "$FL2". */
72 char prod_name[60] P; /* 04: Product identification. */
73 int32 layout_code P; /* 40: 2. */
74 int32 case_size P; /* 44: Number of `value's per case.
75 Note: some systems set this to -1 */
76 int32 compress P; /* 48: 1=compressed, 0=not compressed. */
77 int32 weight_idx P; /* 4c: 1-based index of weighting var, or 0. */
78 int32 case_cnt P; /* 50: Number of cases, -1 if unknown. */
79 flt64 bias P; /* 54: Compression bias (100.0). */
80 char creation_date[9] P; /* 5c: `dd mmm yy' creation date of file. */
81 char creation_time[8] P; /* 65: `hh:mm:ss' 24-hour creation time. */
82 char file_label[64] P; /* 6d: File label. */
83 char padding[3] P; /* ad: Ignored padding. */
86 /* Record Type 2: Variable. */
87 struct sysfile_variable
89 int32 rec_type P; /* 2. */
90 int32 type P; /* 0=numeric, 1-255=string width,
91 -1=continued string. */
92 int32 has_var_label P; /* 1=has a variable label, 0=doesn't. */
93 int32 n_missing_values P; /* Missing value code of -3,-2,0,1,2, or 3. */
94 int32 print P; /* Print format. */
95 int32 write P; /* Write format. */
96 char name[SHORT_NAME_LEN] P; /* Variable name. */
97 /* The rest of the structure varies. */