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
25 /* Message classes. */
28 FE, /* Fatal errors. */
29 SE, SW, SM, /* Script error/warning/message. */
30 IE, IS, /* Installation error/script error. */
31 DE, DW, /* Data-file error/warning. */
32 ME, MW, MM, /* General error/warning/message. */
33 ERR_CLASS_COUNT, /* Number of message classes. */
34 ERR_CLASS_MASK = 0xf, /* Bitmask for class. */
35 ERR_VERBOSITY_SHIFT = 4, /* Shift count for verbosity. */
36 ERR_VERBOSITY_MASK = 0xf /* Bitmask for verbosity. */
39 /* If passed to msg() as CLASS, the return value will cause the message
40 to be displayed only if `verbosity' is at least LEVEL. */
41 #define VM(LEVEL) (MM | ((LEVEL) << ERR_VERBOSITY_SHIFT))
43 /* A file location. */
46 const char *filename; /* Filename. */
47 int line_number; /* Line number. */
50 /* An error message. */
53 int class; /* One of the classes above. */
54 struct file_locator where; /* File location, or (NULL, -1). */
55 const char *title; /* Special text inserted if not null. */
58 /* Number of errors, warnings reported. */
59 extern int err_error_count;
60 extern int err_warning_count;
62 /* If number of allowable errors/warnings is exceeded, then a message
63 is displayed and this flag is set to suppress subsequent
65 extern int err_already_flagged;
67 /* Nonnegative verbosity level. Higher value == more verbose. */
68 extern int err_verbosity;
71 void msg (int class, const char *format, ...)
73 void tmsg (int class, const char *title, const char *format, ...)
75 void err_failure (void);
76 void err_cond_fail (void);
78 /* File-locator stack. */
79 void err_push_file_locator (const struct file_locator *);
80 void err_pop_file_locator (const struct file_locator *);
81 void err_location (struct file_locator *);
83 /* Obscure functions. */
84 void err_break (void);
85 void err_check_count (void);
86 void err_hcf (int exit_code) NO_RETURN;
87 void err_vmsg (const struct error *, const char *, va_list);
89 /* Used in panic situations only */
90 void request_bug_report_and_abort(const char *msg );
92 void err_assert_fail(const char *expr, const char *file, int line);
95 #define __STRING(x) #x
99 #define assert(expr) ( (void) ( expr ? (void) 0 : \
100 err_assert_fail(__STRING(expr), __FILE__, __LINE__)) )