glibc/stdio-common/printf_fp.c

173   /* and the exponent.	*/
174   int exponent;
175   /* Sign of the exponent.  */
209       if (expsign != 0 && _tolower (type) == 'f' && exponent-- > 0)
362 						&exponent, &is_neg,
406 					   &exponent, &is_neg, fpnum.dbl);
438   /* We need three multiprecision variables.  Now that we have the exponent
443     mp_size_t bignum_size = ((ABS (exponent) + BITS_PER_MP_LIMB - 1)
454   if (exponent > 2)
463       if ((exponent + to_shift) % BITS_PER_MP_LIMB == 0)
465 	  MPN_COPY_DECR (frac + (exponent + to_shift) / BITS_PER_MP_LIMB,
467 	  fracsize += (exponent + to_shift) / BITS_PER_MP_LIMB;
471 	  cy = __mpn_lshift (frac + (exponent + to_shift) / BITS_PER_MP_LIMB,
473 			     (exponent + to_shift) % BITS_PER_MP_LIMB);
474 	  fracsize += (exponent + to_shift) / BITS_PER_MP_LIMB;
478       MPN_ZERO (frac, (exponent + to_shift) / BITS_PER_MP_LIMB);
487 	  if (exponent >= scaleexpo + powers->p_expo - 1)
537       exponent = exp10;
622   else if (exponent < 0)
636       exponent = -exponent;
643 	  if (exponent >= powers->m_expo)
669 	      /* If we increased the exponent by exactly 3 we have to test
672 	      if (incr == exponent + 3)
694 	      if (incr < exponent + 3
695 		  || (incr == exponent + 3 &&
702 		  exponent -= incr;
707 		  if (exponent < 0)
708 		    cnt_h += -exponent;
755       while (powers != &_fpioconst_pow10[1] && exponent > 0);
757       if (exponent > 0)
766 	  if (cnt_l < MIN (4, exponent))
769 				 BITS_PER_MP_LIMB - MIN (4, exponent));
774 	    (void) __mpn_rshift (frac, tmp, tmpsize, MIN (4, exponent));
779       exponent = exp10;
787       assert (0 <= exponent && exponent < 3 &&
788 	      exponent + to_shift < BITS_PER_MP_LIMB);
791       cy = __mpn_lshift (frac, fp_input, fracsize, (exponent + to_shift));
793       exponent = 0;
824 	    intdig_max = exponent + 1;
826 	    chars_needed = exponent + 1 + 1 + fracdig_max;
839 	if ((expsign == 0 && exponent >= dig_max)
840 	    || (expsign != 0 && exponent > 4))
853 	    intdig_max = expsign == 0 ? exponent + 1 : 0;
859 	       exponent, which is 4.  */
913 	--exponent;
998 		    exponent += expsign == 0 ? 1 : -1;
1018 		    ++exponent;
1019 		    /* Now we must print the exponent.	*/
1059     /* Write the exponent if it is needed.  */
1065 	/* Find the magnitude of the exponent.	*/
1067 	while (expscale <= exponent)
1070 	if (exponent < 10)
1077 	      *wcp++ = L'0' + (exponent / expscale);
1078 	      exponent %= expscale;
1081 	*wcp++ = L'0' + exponent;