re PR fortran/30981 ([4.1 only] a ** exp fails for integer exponents if exp is "...

re PR fortran/30981 ([4.1 only] a ** exp fails for integer exponents if exp is "-huge()-1" (endless loop))

2007-03-04  Thomas Koenig  <Thomas.Koenig@online.de>

	PR libfortran/30981
	* m4/pow_m4: Use appropriate unsigned int type for u.
	* generated/pow_c10_i16.c: Regenerated.
	* generated/pow_c10_i4.c: Regenerated.
	* generated/pow_c10_i8.c: Regenerated.
	* generated/pow_c16_i16.c: Regenerated.
	* generated/pow_c16_i4.c: Regenerated.
	* generated/pow_c16_i8.c: Regenerated.
	* generated/pow_c4_i16.c: Regenerated.
	* generated/pow_c4_i4.c: Regenerated.
	* generated/pow_c4_i8.c: Regenerated.
	* generated/pow_c8_i16.c: Regenerated.
	* generated/pow_c8_i4.c: Regenerated.
	* generated/pow_c8_i8.c: Regenerated.
	* generated/pow_i16_i16.c: Regenerated.
	* generated/pow_i16_i4.c: Regenerated.
	* generated/pow_i16_i8.c: Regenerated.
	* generated/pow_i4_i16.c: Regenerated.
	* generated/pow_i4_i4.c: Regenerated.
	* generated/pow_i4_i8.c: Regenerated.
	* generated/pow_i8_i16.c: Regenerated.
	* generated/pow_i8_i4.c: Regenerated.
	* generated/pow_i8_i8.c: Regenerated.
	* generated/pow_r10_i16.c: Regenerated.
	* generated/pow_r10_i4.c: Regenerated.
	* generated/pow_r10_i8.c: Regenerated.
	* generated/pow_r16_i16.c: Regenerated.
	* generated/pow_r16_i4.c: Regenerated.
	* generated/pow_r16_i8.c: Regenerated.
	* generated/pow_r4_i16.c: Regenerated.
	* generated/pow_r4_i4.c: Regenerated.
	* generated/pow_r4_i8.c: Regenerated.
	* generated/pow_r8_i16.c: Regenerated.
	* generated/pow_r8_i4.c: Regenerated.
	* generated/pow_r8_i8.c: Regenerated.

2007-03-04  Thomas Koenig  <Thomas.Koenig@online.de>

	PR libfortran/30981
	* gfortran.dg/integer_exponentiation_1.f90:  New test.

From-SVN: r122522