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errors.h revision 1.1.1.1
      1 /* Declarations for error-reporting facilities.
      2 
      3    Copyright (C) 1986-2020 Free Software Foundation, Inc.
      4 
      5    This file is part of GDB.
      6 
      7    This program is free software; you can redistribute it and/or modify
      8    it under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3 of the License, or
     10    (at your option) any later version.
     11 
     12    This program is distributed in the hope that it will be useful,
     13    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15    GNU General Public License for more details.
     16 
     17    You should have received a copy of the GNU General Public License
     18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     19 
     20 #ifndef COMMON_ERRORS_H
     21 #define COMMON_ERRORS_H
     22 
     23 /* A problem was detected, but the requested operation can still
     24    proceed.  A warning message is constructed using a printf- or
     25    vprintf-style argument list.  The function "vwarning" must be
     26    provided by the client.  */
     27 
     28 extern void warning (const char *fmt, ...)
     29      ATTRIBUTE_PRINTF (1, 2);
     30 
     31 extern void vwarning (const char *fmt, va_list args)
     32      ATTRIBUTE_PRINTF (1, 0);
     33 
     34 /* A non-predictable, non-fatal error was detected.  The requested
     35    operation cannot proceed.  An error message is constructed using
     36    a printf- or vprintf-style argument list.  These functions do not
     37    return.  The function "verror" must be provided by the client.  */
     38 
     39 extern void error (const char *fmt, ...)
     40      ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
     41 
     42 extern void verror (const char *fmt, va_list args)
     43      ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
     44 
     45 /* An internal error was detected.  Internal errors indicate
     46    programming errors such as assertion failures, as opposed to
     47    more general errors beyond the application's control.  These
     48    functions do not return.  An error message is constructed using
     49    a printf- or vprintf-style argument list.  FILE and LINE
     50    indicate the file and line number where the programming error
     51    was detected.  The function "internal_verror" must be provided
     52    by the client.  */
     53 
     54 extern void internal_error (const char *file, int line,
     55 			    const char *fmt, ...)
     56      ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 4);
     57 
     58 extern void internal_verror (const char *file, int line,
     59 			     const char *fmt, va_list args)
     60      ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
     61 
     62 /* An internal problem was detected, but the requested operation can
     63    still proceed.  Internal warnings indicate programming errors as
     64    opposed to more general issues beyond the application's control.
     65    A warning message is constructed using a printf- or vprintf-style
     66    argument list.  The function "internal_vwarning" must be provided
     67    by the client.  */
     68 
     69 extern void internal_warning (const char *file, int line,
     70 			      const char *fmt, ...)
     71      ATTRIBUTE_PRINTF (3, 4);
     72 
     73 extern void internal_vwarning (const char *file, int line,
     74 			       const char *fmt, va_list args)
     75      ATTRIBUTE_PRINTF (3, 0);
     76 
     77 
     79 /* Like "error", but the error message is constructed by combining
     80    STRING with the system error message for errno.  This function does
     81    not return.  This function must be provided by the client.  */
     82 
     83 extern void perror_with_name (const char *string) ATTRIBUTE_NORETURN;
     84 
     85 /* Call this function to handle memory allocation failures.  This
     86    function does not return.  This function must be provided by the
     87    client.  */
     88 
     89 extern void malloc_failure (long size) ATTRIBUTE_NORETURN;
     90 
     91 /* Flush stdout and stderr.  Must be provided by the client.  */
     92 
     93 extern void flush_streams ();
     94 
     95 #endif /* COMMON_ERRORS_H */
     96