pow2f             164 gnulib-tests/test-float.c         volatile float pow2_n = pow2f (n); /* 2^n */
pow2f             176 gnulib-tests/test-float.c     volatile float x = pow2f (FLT_MIN_EXP - 1);
pow2f             191 gnulib-tests/test-float.c         volatile float half_n = pow2f (- n); /* 2^-n */