2011-10-27 Richard B. Kreckel <kreckel@ginac.de> Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/50880 * include/std/complex (__complex_acosh): Fix for __z.real() < 0. * include/tr1/complex (__complex_acosh): Likewise. * testsuite/26_numerics/complex/50880.cc: New. * testsuite/tr1/8_c_compatibility/complex/50880.cc: Likewise. Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com> From-SVN: r180563