Initial data commit

Task/Exceptions/C/exceptions-1.c

@@ -0,0 +1,27 @@
+#include <setjmp.h>
+
+enum { MY_EXCEPTION = 1 }; /* any non-zero number */
+
+jmp_buf env;
+
+void foo()
+{
+  longjmp(env, MY_EXCEPTION); /* throw MY_EXCEPTION */
+}
+
+void call_foo()
+{
+  switch (setjmp(env)) {
+  case 0:                     /* try */
+    foo();
+    break;
+  case MY_EXCEPTION:          /* catch MY_EXCEPTION */
+    /* handle exceptions of type MY_EXCEPTION */
+    break;
+  default:
+    /* handle any type of exception not handled by above catches */
+    /* note: if this "default" section is not included, that would be equivalent to a blank "default" section */
+    /* i.e. any exception not caught above would be caught and ignored */
+    /* there is no way to "let the exception through" */
+  }
+}