C++ wrapper iostream input bug

[Helmut Jarausch]

On 20 Apr, Marc Glisse wrote:
> On Mon, 19 Apr 2010, Marc Glisse wrote:
> 
>> The easiest would probably be that I write a patch matching my understanding 
>> so you can try it.
> 
> Hello,
> 
> could you check that with the attached patch the behavior is ok? Note that 
> the patch only handles the mpz case, not mpq or mpf, and it may not be the 
> best way to do it, but it should show if the idea is the right one.

Sorry, I forgot the test case

#include <iostream>
#include <sstream>

// #define USE_IO_EXCEPTIONS

int main() {
  std::istringstream  Inp("1123");
#ifdef USE_IO_EXCEPTIONS
  Inp.exceptions(std::ios::failbit);
#endif
  int I;
  Inp >> std::hex >> I;
  if ( Inp.fail() )
    std::cout << "*** input failed ***\n";
  else
    std::cout << I << std::endl;
}

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany