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 */