pow2d 241 maint/gnulib/tests/test-float.c volatile double pow2_n = pow2d (n); /* 2^n */ pow2d 253 maint/gnulib/tests/test-float.c volatile double x = pow2d (DBL_MIN_EXP - 1); pow2d 268 maint/gnulib/tests/test-float.c volatile double half_n = pow2d (- n); /* 2^-n */