diff options
Diffstat (limited to 'src/libjin/Common/je_exception.cpp')
| -rw-r--r-- | src/libjin/Common/je_exception.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/libjin/Common/je_exception.cpp b/src/libjin/Common/je_exception.cpp index e69de29..5489a42 100644 --- a/src/libjin/Common/je_exception.cpp +++ b/src/libjin/Common/je_exception.cpp @@ -0,0 +1,46 @@ +#include <stdarg.h> + +#include "je_exception.h" + +namespace JinEngine +{ + + Exception::Exception(const char *fmt, ...) + { + va_list args; + int size_buffer = 256, size_out; + char *buffer; + while (true) + { + buffer = new char[size_buffer]; + memset(buffer, 0, size_buffer); + + va_start(args, fmt); + size_out = vsnprintf(buffer, size_buffer, fmt, args); + va_end(args); + + // see http://perfec.to/vsnprintf/pasprintf.c + // if size_out ... + // == -1 --> output was truncated + // == size_buffer --> output was truncated + // == size_buffer-1 --> ambiguous, /may/ have been truncated + // > size_buffer --> output was truncated, and size_out + // bytes would have been written + if (size_out == size_buffer || size_out == -1 || size_out == size_buffer - 1) + size_buffer *= 2; + else if (size_out > size_buffer) + size_buffer = size_out + 2; // to avoid the ambiguous case + else + break; + + delete[] buffer; + } + mMessage = std::string(buffer); + delete[] buffer; + } + + Exception::~Exception() throw() + { + } + +} // namespace JinEngine
\ No newline at end of file |