1 files changed, 67 insertions, 0 deletions
diff --git a/libqpdf/QEXC.cc b/libqpdf/QEXC.cc
new file mode 100644
index 00000000..c65afbb6
--- /dev/null
+++ b/libqpdf/QEXC.cc
@@ -0,0 +1,67 @@
+
+#include <qpdf/QEXC.hh>
+#include <string.h>
+#include <errno.h>
+
+QEXC::Base::Base()
+{
+    // nothing needed
+}
+
+QEXC::Base::Base(std::string const& message) :
+    message(message)
+{
+    // nothing needed
+}
+
+std::string const&
+QEXC::Base::unparse() const
+{
+    return this->message;
+}
+
+void
+QEXC::Base::setMessage(std::string const& message)
+{
+    this->message = message;
+}
+
+const char*
+QEXC::Base::what() const throw()
+{
+    // Since unparse() returns a const string reference, its
+    // implementors must arrange to have it return a reference to a
+    // string that is not going to disappear.  It is therefore safe
+    // for us to return it's c_str() pointer.
+    return this->unparse().c_str();
+}
+
+QEXC::General::General()
+{
+    // nothing needed
+}
+
+QEXC::General::General(std::string const& message) :
+    Base(message)
+{
+    // nothing needed
+}
+
+QEXC::System::System(std::string const& prefix, int sys_errno)
+{
+    // Note: using sys_errno in case errno is a macro.
+    this->sys_errno = sys_errno;
+    this->setMessage(prefix + ": " + strerror(sys_errno));
+}
+
+int
+QEXC::System::getErrno() const
+{
+    return this->sys_errno;
+}
+
+QEXC::Internal::Internal(std::string const& message) :
+    Base("INTERNAL ERROR: " + message)
+{
+    // nothing needed
+}