misc.cpp

   1 /* misc utils for rawv
   2  * Copyright (C) 2010  Kirill Smelkov <kirr@navytux.spb.ru>
   3  * Copyright (C) 2011  Marine Bridge and Navigation Systems (http://mns.spb.ru/)
   4  *
   5  * This library is free software: you can Use, Study, Modify and Redistribute
   6  * it under the terms of the GNU Lesser General Public License version 2.1, or
   7  * any later version. This library is distributed WITHOUT ANY WARRANTY. See
   8  * COPYING.LIB file for full License terms.
   9  */
  10
  11 #include "rawv.h"
  12
  13 #include <stdarg.h>
  14 #include <string.h>
  15 #include <errno.h>
  16 #include <stdio.h>
  17
  18 namespace rawv {
  19
  20 RawvError::RawvError(const char *msg) : std::runtime_error(msg)
  21 {}
  22
  23 RawvError::~RawvError() throw()
  24 {}  /* emits vtable here */
  25
  26
  27 void die(const char *fmt, ...)
  28 {
  29     char msg[100];
  30     va_list ap;
  31     va_start(ap, fmt);
  32     vsnprintf(msg, sizeof(msg), fmt, ap);
  33     throw RawvError(msg);
  34 }
  35
  36 void die_errno(const char *s)
  37 {
  38     die ("%s error %d, %s", s, errno, strerror (errno));
  39 }
  40
  41 void warn(const char *fmt, ...)
  42 {
  43     va_list ap;
  44     va_start(ap, fmt);
  45     vfprintf(stderr, fmt, ap);
  46 }
  47
  48 void warn_errno(const char *s)
  49 {
  50     warn ("W: %s error %d, %s\n", s, errno, strerror (errno));
  51 }
  52
  53
  54 }   // rawv::