1 /////////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas 4 // Digital Ltd. LLC 5 // 6 // All rights reserved. 7 // 8 // Redistribution and use in source and binary forms, with or without 9 // modification, are permitted provided that the following conditions are 10 // met: 11 // * Redistributions of source code must retain the above copyright 12 // notice, this list of conditions and the following disclaimer. 13 // * Redistributions in binary form must reproduce the above 14 // copyright notice, this list of conditions and the following disclaimer 15 // in the documentation and/or other materials provided with the 16 // distribution. 17 // * Neither the name of Industrial Light & Magic nor the names of 18 // its contributors may be used to endorse or promote products derived 19 // from this software without specific prior written permission. 20 // 21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 // 33 /////////////////////////////////////////////////////////////////////////// 34 35 36 37 #ifndef INCLUDED_IEXTHROWERRNOEXC_H 38 #define INCLUDED_IEXTHROWERRNOEXC_H 39 40 //---------------------------------------------------------- 41 // 42 // A function which throws ExcErrno exceptions 43 // 44 //---------------------------------------------------------- 45 46 #include "IexBaseExc.h" 47 48 namespace Iex { 49 50 51 //-------------------------------------------------------------------------- 52 // 53 // Function throwErrnoExc() throws an exception which corresponds to 54 // error code errnum. The exception text is initialized with a copy 55 // of the string passed to throwErrnoExc(), where all occurrences of 56 // "%T" have been replaced with the output of strerror(oserror()). 57 // 58 // Example: 59 // 60 // If opening file /tmp/output failed with an ENOENT error code, 61 // calling 62 // 63 // throwErrnoExc (); 64 // 65 // or 66 // 67 // throwErrnoExc ("%T."); 68 // 69 // will throw an EnoentExc whose text reads 70 // 71 // No such file or directory. 72 // 73 // More detailed messages can be assembled using stringstreams: 74 // 75 // std::stringstream s; 76 // s << "Cannot open file " << name << " (%T)."; 77 // throwErrnoExc (s); 78 // 79 // The resulting exception contains the following text: 80 // 81 // Cannot open file /tmp/output (No such file or directory). 82 // 83 // Alternatively, you may want to use the THROW_ERRNO macro defined 84 // in IexMacros.h: 85 // 86 // THROW_ERRNO ("Cannot open file " << name << " (%T).") 87 // 88 //-------------------------------------------------------------------------- 89 90 void throwErrnoExc (const std::string &txt, int errnum); 91 void throwErrnoExc (const std::string &txt = "%T." /*, int errnum = oserror() */); 92 93 94 } // namespace Iex 95 96 #endif 97
