msvcp90: Added support for exception reraising in ios_base::clear.

dlls/msvcp90/exception.c

@@ -684,6 +684,8 @@ void throw_exception(exception_type et, const char *str)
     const char *addr = str;
 
     switch(et) {
+    case EXCEPTION_RERAISE:
+        _CxxThrowException(NULL, NULL);
     case EXCEPTION: {
         exception e;
         MSVCP_exception_ctor(&e, &addr);

dlls/msvcp90/ios.c

@@ -1942,13 +1942,13 @@ void __thiscall ios_base_clear_reraise(ios_base *this, IOSB_iostate state, MSVCP
 {
     TRACE("(%p %x %x)\n", this, state, reraise);
 
-    if(reraise) {
-        FIXME("reraise is not supported\n");
+    this->state = state & IOSTATE_mask;
+    if(!(this->state & this->except))
         return;
-    }
 
-    this->state = state & IOSTATE_mask;
-    if(this->state & this->except & IOSTATE_eofbit)
+    if(reraise)
+        throw_exception(EXCEPTION_RERAISE, NULL);
+    else if(this->state & this->except & IOSTATE_eofbit)
         throw_exception(EXCEPTION_FAILURE, "eofbit is set");
     else if(this->state & this->except & IOSTATE_failbit)
         throw_exception(EXCEPTION_FAILURE, "failbit is set");

dlls/msvcp90/msvcp90.h

@@ -157,6 +157,7 @@ typedef struct __exception
 
 /* Internal: throws selected exception */
 typedef enum __exception_type {
+    EXCEPTION_RERAISE,
     EXCEPTION,
     EXCEPTION_BAD_ALLOC,
     EXCEPTION_LOGIC_ERROR,