PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/3rdparty/ilmbase-1.0.2/IexMacros.h
00001 
00002 //
00003 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
00004 // Digital Ltd. LLC
00005 // 
00006 // All rights reserved.
00007 // 
00008 // Redistribution and use in source and binary forms, with or without
00009 // modification, are permitted provided that the following conditions are
00010 // met:
00011 // *       Redistributions of source code must retain the above copyright
00012 // notice, this list of conditions and the following disclaimer.
00013 // *       Redistributions in binary form must reproduce the above
00014 // copyright notice, this list of conditions and the following disclaimer
00015 // in the documentation and/or other materials provided with the
00016 // distribution.
00017 // *       Neither the name of Industrial Light & Magic nor the names of
00018 // its contributors may be used to endorse or promote products derived
00019 // from this software without specific prior written permission. 
00020 // 
00021 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00022 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00023 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00024 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00025 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00027 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00028 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00029 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00030 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00031 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00032 //
00034 
00035 
00036 
00037 #ifndef INCLUDED_IEXMACROS_H
00038 #define INCLUDED_IEXMACROS_H
00039 
00040 //--------------------------------------------------------------------
00041 //
00042 //      Macros which make throwing exceptions more convenient
00043 //
00044 //--------------------------------------------------------------------
00045 
00046 #include <sstream>
00047 
00048 
00049 //----------------------------------------------------------------------------
00050 // A macro to throw exceptions whose text is assembled using stringstreams.
00051 //
00052 // Example:
00053 //
00054 //      THROW (InputExc, "Syntax error in line " << line ", " << file << ".");
00055 //      
00056 //----------------------------------------------------------------------------
00057 
00058 #define THROW(type, text)       \
00059     do                          \
00060     {                           \
00061         std::stringstream s;    \
00062         s << text;              \
00063         throw type (s);         \
00064     }                           \
00065     while (0)
00066 
00067 
00068 //----------------------------------------------------------------------------
00069 // Macros to add to or to replace the text of an exception.
00070 // The new text is assembled using stringstreams.
00071 //
00072 // Examples:
00073 //
00074 // Append to end of an exception's text:
00075 //
00076 //      catch (BaseExc &e)
00077 //      {
00078 //          APPEND_EXC (e, " Directory " << name << " does not exist.");
00079 //          throw;
00080 //      }
00081 //
00082 // Replace an exception's text:
00083 //
00084 //      catch (BaseExc &e)
00085 //      {
00086 //          REPLACE_EXC (e, "Directory " << name << " does not exist. " << e);
00087 //          throw;
00088 //      }
00089 //----------------------------------------------------------------------------
00090 
00091 #define APPEND_EXC(exc, text)   \
00092     do                          \
00093     {                           \
00094         std::stringstream s;    \
00095         s << text;              \
00096         exc.append (s);         \
00097     }                           \
00098     while (0)
00099 
00100 #define REPLACE_EXC(exc, text)  \
00101     do                          \
00102     {                           \
00103         std::stringstream s;    \
00104         s << text;              \
00105         exc.assign (s);         \
00106     }                           \
00107     while (0)
00108 
00109 
00110 //-------------------------------------------------------------
00111 // A macro to throw ErrnoExc exceptions whose text is assembled
00112 // using stringstreams:
00113 //
00114 // Example:
00115 //
00116 //      THROW_ERRNO ("Cannot open file " << name << " (%T).");
00117 //
00118 //-------------------------------------------------------------
00119 
00120 #define THROW_ERRNO(text)               \
00121     do                                  \
00122     {                                   \
00123         std::stringstream s;            \
00124         s << text;                      \
00125         ::Iex::throwErrnoExc (s.str()); \
00126     }                                   \
00127     while (0)
00128 
00129 
00130 //-------------------------------------------------------------
00131 // A macro to throw exceptions if an assertion is false.
00132 //
00133 // Example:
00134 //
00135 //      ASSERT (ptr != NULL, NullExc, "Null pointer" );
00136 //
00137 //-------------------------------------------------------------
00138 
00139 #define ASSERT(assertion, type, text)   \
00140     do                                  \
00141     {                                   \
00142         if ((assertion) == false)       \
00143             THROW (type, text);         \
00144     }                                   \
00145     while (0)
00146 
00147 
00148 #endif