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      1 Input: 1.23
      2 Output: d =
      3 1.23 = 0x3ff3ae14 7ae147ae, se = 
      4 	g_fmt gives "1.23"
      5 	dtoa(mode = 0, ndigits = 17):
      6 	dtoa returns sign = 0, decpt = 1, 3 digits:
      7 123
      8 	nextafter(d,+Infinity) = 1.2300000000000002 = 0x3ff3ae14 7ae147af:
      9 	g_fmt gives "1.2300000000000002"
     10 	dtoa returns sign = 0, decpt = 1, 17 digits:
     11 12300000000000002
     12 	nextafter(d,-Infinity) = 1.2299999999999998 = 0x3ff3ae14 7ae147ad:
     13 	g_fmt gives "1.2299999999999998"
     14 	dtoa returns sign = 0, decpt = 1, 17 digits:
     15 12299999999999998
     16 Input: 1.23e+20
     17 Output: d =
     18 1.23e+20 = 0x441aabdf 2145b430, se = 
     19 	g_fmt gives "1.23e+20"
     20 	dtoa(mode = 0, ndigits = 17):
     21 	dtoa returns sign = 0, decpt = 21, 3 digits:
     22 123
     23 	nextafter(d,+Infinity) = 1.2300000000000002e+20 = 0x441aabdf 2145b431:
     24 	g_fmt gives "123000000000000020000"
     25 	dtoa returns sign = 0, decpt = 21, 17 digits:
     26 12300000000000002
     27 	nextafter(d,-Infinity) = 1.2299999999999998e+20 = 0x441aabdf 2145b42f:
     28 	g_fmt gives "122999999999999980000"
     29 	dtoa returns sign = 0, decpt = 21, 17 digits:
     30 12299999999999998
     31 Input: 1.23e-20
     32 Output: d =
     33 1.2300000000000001e-20 = 0x3bcd0ae4 cf767531, se = 
     34 	g_fmt gives "1.23e-20"
     35 	dtoa(mode = 0, ndigits = 17):
     36 	dtoa returns sign = 0, decpt = -19, 3 digits:
     37 123
     38 	nextafter(d,+Infinity) = 1.2300000000000002e-20 = 0x3bcd0ae4 cf767532:
     39 	g_fmt gives "1.2300000000000002e-20"
     40 	dtoa returns sign = 0, decpt = -19, 17 digits:
     41 12300000000000002
     42 	nextafter(d,-Infinity) = 1.2299999999999999e-20 = 0x3bcd0ae4 cf767530:
     43 	g_fmt gives "1.2299999999999999e-20"
     44 	dtoa returns sign = 0, decpt = -19, 17 digits:
     45 12299999999999999
     46 Input: 1.23456789
     47 Output: d =
     48 1.2345678899999999 = 0x3ff3c0ca 4283de1b, se = 
     49 	g_fmt gives "1.23456789"
     50 	dtoa(mode = 0, ndigits = 17):
     51 	dtoa returns sign = 0, decpt = 1, 9 digits:
     52 123456789
     53 	nextafter(d,+Infinity) = 1.2345678900000001 = 0x3ff3c0ca 4283de1c:
     54 	g_fmt gives "1.2345678900000001"
     55 	dtoa returns sign = 0, decpt = 1, 17 digits:
     56 12345678900000001
     57 	nextafter(d,-Infinity) = 1.2345678899999997 = 0x3ff3c0ca 4283de1a:
     58 	g_fmt gives "1.2345678899999997"
     59 	dtoa returns sign = 0, decpt = 1, 17 digits:
     60 12345678899999997
     61 Input: 1.23456589e+20
     62 Output: d =
     63 1.23456589e+20 = 0x441ac537 a660b997, se = 
     64 	g_fmt gives "1.23456589e+20"
     65 	dtoa(mode = 0, ndigits = 17):
     66 	dtoa returns sign = 0, decpt = 21, 9 digits:
     67 123456589
     68 	nextafter(d,+Infinity) = 1.2345658900000001e+20 = 0x441ac537 a660b998:
     69 	g_fmt gives "123456589000000010000"
     70 	dtoa returns sign = 0, decpt = 21, 17 digits:
     71 12345658900000001
     72 	nextafter(d,-Infinity) = 1.2345658899999998e+20 = 0x441ac537 a660b996:
     73 	g_fmt gives "123456588999999980000"
     74 	dtoa returns sign = 0, decpt = 21, 17 digits:
     75 12345658899999998
     76 Input: 1.23e+30
     77 Output: d =
     78 1.23e+30 = 0x462f0cb0 4e8fb790, se = 
     79 	g_fmt gives "1.23e+30"
     80 	dtoa(mode = 0, ndigits = 17):
     81 	dtoa returns sign = 0, decpt = 31, 3 digits:
     82 123
     83 	nextafter(d,+Infinity) = 1.2300000000000001e+30 = 0x462f0cb0 4e8fb791:
     84 	g_fmt gives "1.2300000000000001e+30"
     85 	dtoa returns sign = 0, decpt = 31, 17 digits:
     86 12300000000000001
     87 	nextafter(d,-Infinity) = 1.2299999999999998e+30 = 0x462f0cb0 4e8fb78f:
     88 	g_fmt gives "1.2299999999999998e+30"
     89 	dtoa returns sign = 0, decpt = 31, 17 digits:
     90 12299999999999998
     91 Input: 1.23e-30
     92 Output: d =
     93 1.2300000000000001e-30 = 0x39b8f286 6f5010ab, se = 
     94 	g_fmt gives "1.23e-30"
     95 	dtoa(mode = 0, ndigits = 17):
     96 	dtoa returns sign = 0, decpt = -29, 3 digits:
     97 123
     98 	nextafter(d,+Infinity) = 1.2300000000000002e-30 = 0x39b8f286 6f5010ac:
     99 	g_fmt gives "1.2300000000000002e-30"
    100 	dtoa returns sign = 0, decpt = -29, 17 digits:
    101 12300000000000002
    102 	nextafter(d,-Infinity) = 1.2299999999999999e-30 = 0x39b8f286 6f5010aa:
    103 	g_fmt gives "1.2299999999999999e-30"
    104 	dtoa returns sign = 0, decpt = -29, 17 digits:
    105 12299999999999999
    106 Input: 1.23456789e-20
    107 Output: d =
    108 1.2345678899999999e-20 = 0x3bcd2681 471e7ada, se = 
    109 	g_fmt gives "1.23456789e-20"
    110 	dtoa(mode = 0, ndigits = 17):
    111 	dtoa returns sign = 0, decpt = -19, 9 digits:
    112 123456789
    113 	nextafter(d,+Infinity) = 1.2345678900000001e-20 = 0x3bcd2681 471e7adb:
    114 	g_fmt gives "1.2345678900000001e-20"
    115 	dtoa returns sign = 0, decpt = -19, 17 digits:
    116 12345678900000001
    117 	nextafter(d,-Infinity) = 1.2345678899999998e-20 = 0x3bcd2681 471e7ad9:
    118 	g_fmt gives "1.2345678899999998e-20"
    119 	dtoa returns sign = 0, decpt = -19, 17 digits:
    120 12345678899999998
    121 Input: 1.23456789e-30
    122 Output: d =
    123 1.23456789e-30 = 0x39b90a3e 33bbd995, se = 
    124 	g_fmt gives "1.23456789e-30"
    125 	dtoa(mode = 0, ndigits = 17):
    126 	dtoa returns sign = 0, decpt = -29, 9 digits:
    127 123456789
    128 	nextafter(d,+Infinity) = 1.2345678900000002e-30 = 0x39b90a3e 33bbd996:
    129 	g_fmt gives "1.2345678900000002e-30"
    130 	dtoa returns sign = 0, decpt = -29, 17 digits:
    131 12345678900000002
    132 	nextafter(d,-Infinity) = 1.2345678899999998e-30 = 0x39b90a3e 33bbd994:
    133 	g_fmt gives "1.2345678899999998e-30"
    134 	dtoa returns sign = 0, decpt = -29, 17 digits:
    135 12345678899999998
    136 Input: 1.234567890123456789
    137 Output: d =
    138 1.2345678901234567 = 0x3ff3c0ca 428c59fb, se = 
    139 	g_fmt gives "1.2345678901234567"
    140 	dtoa(mode = 0, ndigits = 17):
    141 	dtoa returns sign = 0, decpt = 1, 17 digits:
    142 12345678901234567
    143 	nextafter(d,+Infinity) = 1.2345678901234569 = 0x3ff3c0ca 428c59fc:
    144 	g_fmt gives "1.234567890123457"
    145 	dtoa returns sign = 0, decpt = 1, 16 digits:
    146 1234567890123457
    147 	nextafter(d,-Infinity) = 1.2345678901234565 = 0x3ff3c0ca 428c59fa:
    148 	g_fmt gives "1.2345678901234565"
    149 	dtoa returns sign = 0, decpt = 1, 17 digits:
    150 12345678901234565
    151 Input: 1.23456789012345678901234567890123456789
    152 Output: d =
    153 1.2345678901234567 = 0x3ff3c0ca 428c59fb, se = 
    154 	g_fmt gives "1.2345678901234567"
    155 	dtoa(mode = 0, ndigits = 17):
    156 	dtoa returns sign = 0, decpt = 1, 17 digits:
    157 12345678901234567
    158 	nextafter(d,+Infinity) = 1.2345678901234569 = 0x3ff3c0ca 428c59fc:
    159 	g_fmt gives "1.234567890123457"
    160 	dtoa returns sign = 0, decpt = 1, 16 digits:
    161 1234567890123457
    162 	nextafter(d,-Infinity) = 1.2345678901234565 = 0x3ff3c0ca 428c59fa:
    163 	g_fmt gives "1.2345678901234565"
    164 	dtoa returns sign = 0, decpt = 1, 17 digits:
    165 12345678901234565
    166 Input: 1.23e306
    167 Output: d =
    168 1.23e+306 = 0x7f7c0676 cd1c61f5, se = 
    169 	g_fmt gives "1.23e+306"
    170 	dtoa(mode = 0, ndigits = 17):
    171 	dtoa returns sign = 0, decpt = 307, 3 digits:
    172 123
    173 	nextafter(d,+Infinity) = 1.2300000000000002e+306 = 0x7f7c0676 cd1c61f6:
    174 	g_fmt gives "1.2300000000000002e+306"
    175 	dtoa returns sign = 0, decpt = 307, 17 digits:
    176 12300000000000002
    177 	nextafter(d,-Infinity) = 1.2299999999999999e+306 = 0x7f7c0676 cd1c61f4:
    178 	g_fmt gives "1.2299999999999999e+306"
    179 	dtoa returns sign = 0, decpt = 307, 17 digits:
    180 12299999999999999
    181 Input: 1.23e-306
    182 Output: d =
    183 1.23e-306 = 0x6ba3b8 5da396e8, se = 
    184 	g_fmt gives "1.23e-306"
    185 	dtoa(mode = 0, ndigits = 17):
    186 	dtoa returns sign = 0, decpt = -305, 3 digits:
    187 123
    188 	nextafter(d,+Infinity) = 1.2300000000000002e-306 = 0x6ba3b8 5da396e9:
    189 	g_fmt gives "1.2300000000000002e-306"
    190 	dtoa returns sign = 0, decpt = -305, 17 digits:
    191 12300000000000002
    192 	nextafter(d,-Infinity) = 1.2299999999999999e-306 = 0x6ba3b8 5da396e7:
    193 	g_fmt gives "1.2299999999999999e-306"
    194 	dtoa returns sign = 0, decpt = -305, 17 digits:
    195 12299999999999999
    196 Input: 1.23e-320
    197 Output: d =
    198 1.2302234581447039e-320 = 0x0 9ba, se = 
    199 	g_fmt gives "1.23e-320"
    200 	dtoa(mode = 0, ndigits = 17):
    201 	dtoa returns sign = 0, decpt = -319, 3 digits:
    202 123
    203 	nextafter(d,+Infinity) = 1.2307175237905451e-320 = 0x0 9bb:
    204 	g_fmt gives "1.2307e-320"
    205 	dtoa returns sign = 0, decpt = -319, 5 digits:
    206 12307
    207 	nextafter(d,-Infinity) = 1.2297293924988626e-320 = 0x0 9b9:
    208 	g_fmt gives "1.2297e-320"
    209 	dtoa returns sign = 0, decpt = -319, 5 digits:
    210 12297
    211 Input: 1.23e-20
    212 Output: d =
    213 1.2300000000000001e-20 = 0x3bcd0ae4 cf767531, se = 
    214 	g_fmt gives "1.23e-20"
    215 	dtoa(mode = 0, ndigits = 17):
    216 	dtoa returns sign = 0, decpt = -19, 3 digits:
    217 123
    218 	nextafter(d,+Infinity) = 1.2300000000000002e-20 = 0x3bcd0ae4 cf767532:
    219 	g_fmt gives "1.2300000000000002e-20"
    220 	dtoa returns sign = 0, decpt = -19, 17 digits:
    221 12300000000000002
    222 	nextafter(d,-Infinity) = 1.2299999999999999e-20 = 0x3bcd0ae4 cf767530:
    223 	g_fmt gives "1.2299999999999999e-20"
    224 	dtoa returns sign = 0, decpt = -19, 17 digits:
    225 12299999999999999
    226 Input: 1.23456789e307
    227 Output: d =
    228 1.23456789e+307 = 0x7fb194b1 4bdaecdc, se = 
    229 	g_fmt gives "1.23456789e+307"
    230 	dtoa(mode = 0, ndigits = 17):
    231 	dtoa returns sign = 0, decpt = 308, 9 digits:
    232 123456789
    233 	nextafter(d,+Infinity) = 1.2345678900000003e+307 = 0x7fb194b1 4bdaecdd:
    234 	g_fmt gives "1.2345678900000003e+307"
    235 	dtoa returns sign = 0, decpt = 308, 17 digits:
    236 12345678900000003
    237 	nextafter(d,-Infinity) = 1.2345678899999998e+307 = 0x7fb194b1 4bdaecdb:
    238 	g_fmt gives "1.2345678899999998e+307"
    239 	dtoa returns sign = 0, decpt = 308, 17 digits:
    240 12345678899999998
    241 Input: 1.23456589e-307
    242 Output: d =
    243 1.2345658899999999e-307 = 0x363196 bb9845fa, se = 
    244 	g_fmt gives "1.23456589e-307"
    245 	dtoa(mode = 0, ndigits = 17):
    246 	dtoa returns sign = 0, decpt = -306, 9 digits:
    247 123456589
    248 	nextafter(d,+Infinity) = 1.2345658900000001e-307 = 0x363196 bb9845fb:
    249 	g_fmt gives "1.2345658900000001e-307"
    250 	dtoa returns sign = 0, decpt = -306, 17 digits:
    251 12345658900000001
    252 	nextafter(d,-Infinity) = 1.2345658899999997e-307 = 0x363196 bb9845f9:
    253 	g_fmt gives "1.2345658899999997e-307"
    254 	dtoa returns sign = 0, decpt = -306, 17 digits:
    255 12345658899999997
    256 Input: 1.234567890123456789
    257 Output: d =
    258 1.2345678901234567 = 0x3ff3c0ca 428c59fb, se = 
    259 	g_fmt gives "1.2345678901234567"
    260 	dtoa(mode = 0, ndigits = 17):
    261 	dtoa returns sign = 0, decpt = 1, 17 digits:
    262 12345678901234567
    263 	nextafter(d,+Infinity) = 1.2345678901234569 = 0x3ff3c0ca 428c59fc:
    264 	g_fmt gives "1.234567890123457"
    265 	dtoa returns sign = 0, decpt = 1, 16 digits:
    266 1234567890123457
    267 	nextafter(d,-Infinity) = 1.2345678901234565 = 0x3ff3c0ca 428c59fa:
    268 	g_fmt gives "1.2345678901234565"
    269 	dtoa returns sign = 0, decpt = 1, 17 digits:
    270 12345678901234565
    271 Input: 1.234567890123456789e301
    272 Output: d =
    273 1.2345678901234568e+301 = 0x7e726f51 75f56413, se = 
    274 	g_fmt gives "1.2345678901234568e+301"
    275 	dtoa(mode = 0, ndigits = 17):
    276 	dtoa returns sign = 0, decpt = 302, 17 digits:
    277 12345678901234568
    278 	nextafter(d,+Infinity) = 1.234567890123457e+301 = 0x7e726f51 75f56414:
    279 	g_fmt gives "1.234567890123457e+301"
    280 	dtoa returns sign = 0, decpt = 302, 16 digits:
    281 1234567890123457
    282 	nextafter(d,-Infinity) = 1.2345678901234565e+301 = 0x7e726f51 75f56412:
    283 	g_fmt gives "1.2345678901234565e+301"
    284 	dtoa returns sign = 0, decpt = 302, 17 digits:
    285 12345678901234565
    286 Input: 1.234567890123456789e-301
    287 Output: d =
    288 1.2345678901234567e-301 = 0x1752a64 e34ba0d3, se = 
    289 	g_fmt gives "1.2345678901234567e-301"
    290 	dtoa(mode = 0, ndigits = 17):
    291 	dtoa returns sign = 0, decpt = -300, 17 digits:
    292 12345678901234567
    293 	nextafter(d,+Infinity) = 1.2345678901234569e-301 = 0x1752a64 e34ba0d4:
    294 	g_fmt gives "1.234567890123457e-301"
    295 	dtoa returns sign = 0, decpt = -300, 16 digits:
    296 1234567890123457
    297 	nextafter(d,-Infinity) = 1.2345678901234565e-301 = 0x1752a64 e34ba0d2:
    298 	g_fmt gives "1.2345678901234565e-301"
    299 	dtoa returns sign = 0, decpt = -300, 17 digits:
    300 12345678901234565
    301 Input: 1.234567890123456789e-321
    302 Output: d =
    303 1.2351641146031164e-321 = 0x0 fa, se = 
    304 	g_fmt gives "1.235e-321"
    305 	dtoa(mode = 0, ndigits = 17):
    306 	dtoa returns sign = 0, decpt = -320, 4 digits:
    307 1235
    308 	nextafter(d,+Infinity) = 1.2401047710615288e-321 = 0x0 fb:
    309 	g_fmt gives "1.24e-321"
    310 	dtoa returns sign = 0, decpt = -320, 3 digits:
    311 124
    312 	nextafter(d,-Infinity) = 1.2302234581447039e-321 = 0x0 f9:
    313 	g_fmt gives "1.23e-321"
    314 	dtoa returns sign = 0, decpt = -320, 3 digits:
    315 123
    316 Input: 1e23
    317 Output: d =
    318 9.9999999999999992e+22 = 0x44b52d02 c7e14af6, se = 
    319 	g_fmt gives "1e+23"
    320 	dtoa(mode = 0, ndigits = 17):
    321 	dtoa returns sign = 0, decpt = 24, 1 digits:
    322 1
    323 	nextafter(d,+Infinity) = 1.0000000000000001e+23 = 0x44b52d02 c7e14af7:
    324 	g_fmt gives "1.0000000000000001e+23"
    325 	dtoa returns sign = 0, decpt = 24, 17 digits:
    326 10000000000000001
    327 	nextafter(d,-Infinity) = 9.9999999999999975e+22 = 0x44b52d02 c7e14af5:
    328 	g_fmt gives "9.999999999999997e+22"
    329 	dtoa returns sign = 0, decpt = 23, 16 digits:
    330 9999999999999997
    331 Input: 1e310
    332 Output: d =
    333 Infinity = 0x7ff00000 0, se = 
    334 	g_fmt gives "Infinity"
    335 	dtoa(mode = 0, ndigits = 17):
    336 	dtoa returns sign = 0, decpt = 9999, 8 digits:
    337 Infinity
    338 Input: 9.0259718793241475e-277
    339 Output: d =
    340 9.0259718793241479e-277 = 0x6a00000 0, se = 
    341 	g_fmt gives "9.025971879324148e-277"
    342 	dtoa(mode = 0, ndigits = 17):
    343 	dtoa returns sign = 0, decpt = -276, 16 digits:
    344 9025971879324148
    345 	nextafter(d,+Infinity) = 9.0259718793241499e-277 = 0x6a00000 1:
    346 	g_fmt gives "9.02597187932415e-277"
    347 	dtoa returns sign = 0, decpt = -276, 15 digits:
    348 902597187932415
    349 Input: 9.025971879324147880346310405869e-277
    350 Output: d =
    351 9.0259718793241479e-277 = 0x6a00000 0, se = 
    352 	g_fmt gives "9.025971879324148e-277"
    353 	dtoa(mode = 0, ndigits = 17):
    354 	dtoa returns sign = 0, decpt = -276, 16 digits:
    355 9025971879324148
    356 	nextafter(d,+Infinity) = 9.0259718793241499e-277 = 0x6a00000 1:
    357 	g_fmt gives "9.02597187932415e-277"
    358 	dtoa returns sign = 0, decpt = -276, 15 digits:
    359 902597187932415
    360 Input: 9.025971879324147880346310405868e-277
    361 Output: d =
    362 9.0259718793241479e-277 = 0x6a00000 0, se = 
    363 	g_fmt gives "9.025971879324148e-277"
    364 	dtoa(mode = 0, ndigits = 17):
    365 	dtoa returns sign = 0, decpt = -276, 16 digits:
    366 9025971879324148
    367 	nextafter(d,+Infinity) = 9.0259718793241499e-277 = 0x6a00000 1:
    368 	g_fmt gives "9.02597187932415e-277"
    369 	dtoa returns sign = 0, decpt = -276, 15 digits:
    370 902597187932415
    371 Input: 2.2250738585072014e-308
    372 Output: d =
    373 2.2250738585072014e-308 = 0x100000 0, se = 
    374 	g_fmt gives "2.2250738585072014e-308"
    375 	dtoa(mode = 0, ndigits = 17):
    376 	dtoa returns sign = 0, decpt = -307, 17 digits:
    377 22250738585072014
    378 	nextafter(d,+Infinity) = 2.2250738585072019e-308 = 0x100000 1:
    379 	g_fmt gives "2.225073858507202e-308"
    380 	dtoa returns sign = 0, decpt = -307, 16 digits:
    381 2225073858507202
    382 Input: 2.2250738585072013e-308
    383 Output: d =
    384 2.2250738585072014e-308 = 0x100000 0, se = 
    385 	g_fmt gives "2.2250738585072014e-308"
    386 	dtoa(mode = 0, ndigits = 17):
    387 	dtoa returns sign = 0, decpt = -307, 17 digits:
    388 22250738585072014
    389 	nextafter(d,+Infinity) = 2.2250738585072019e-308 = 0x100000 1:
    390 	g_fmt gives "2.225073858507202e-308"
    391 	dtoa returns sign = 0, decpt = -307, 16 digits:
    392 2225073858507202
    393 Input: 1.23:2 6
    394 Output: d =
    395 1.23 = 0x3ff3ae14 7ae147ae, se = :2 6
    396 	g_fmt gives "1.23"
    397 	dtoa(mode = 2, ndigits = 6):
    398 	dtoa returns sign = 0, decpt = 1, 3 digits:
    399 123
    400 	nextafter(d,+Infinity) = 1.2300000000000002 = 0x3ff3ae14 7ae147af:
    401 	g_fmt gives "1.2300000000000002"
    402 	dtoa returns sign = 0, decpt = 1, 3 digits:
    403 123
    404 	nextafter(d,-Infinity) = 1.2299999999999998 = 0x3ff3ae14 7ae147ad:
    405 	g_fmt gives "1.2299999999999998"
    406 	dtoa returns sign = 0, decpt = 1, 3 digits:
    407 123
    408 Input: 1.23:4 6
    409 Output: d =
    410 1.23 = 0x3ff3ae14 7ae147ae, se = :4 6
    411 	g_fmt gives "1.23"
    412 	dtoa(mode = 4, ndigits = 6):
    413 	dtoa returns sign = 0, decpt = 1, 3 digits:
    414 123
    415 	nextafter(d,+Infinity) = 1.2300000000000002 = 0x3ff3ae14 7ae147af:
    416 	g_fmt gives "1.2300000000000002"
    417 	dtoa returns sign = 0, decpt = 1, 3 digits:
    418 123
    419 	nextafter(d,-Infinity) = 1.2299999999999998 = 0x3ff3ae14 7ae147ad:
    420 	g_fmt gives "1.2299999999999998"
    421 	dtoa returns sign = 0, decpt = 1, 3 digits:
    422 123
    423 Input: 1.23e+20:2 6
    424 Output: d =
    425 1.23e+20 = 0x441aabdf 2145b430, se = :2 6
    426 	g_fmt gives "1.23e+20"
    427 	dtoa(mode = 2, ndigits = 6):
    428 	dtoa returns sign = 0, decpt = 21, 3 digits:
    429 123
    430 	nextafter(d,+Infinity) = 1.2300000000000002e+20 = 0x441aabdf 2145b431:
    431 	g_fmt gives "123000000000000020000"
    432 	dtoa returns sign = 0, decpt = 21, 3 digits:
    433 123
    434 	nextafter(d,-Infinity) = 1.2299999999999998e+20 = 0x441aabdf 2145b42f:
    435 	g_fmt gives "122999999999999980000"
    436 	dtoa returns sign = 0, decpt = 21, 3 digits:
    437 123
    438 Input: 1.23e+20:4 6
    439 Output: d =
    440 1.23e+20 = 0x441aabdf 2145b430, se = :4 6
    441 	g_fmt gives "1.23e+20"
    442 	dtoa(mode = 4, ndigits = 6):
    443 	dtoa returns sign = 0, decpt = 21, 3 digits:
    444 123
    445 	nextafter(d,+Infinity) = 1.2300000000000002e+20 = 0x441aabdf 2145b431:
    446 	g_fmt gives "123000000000000020000"
    447 	dtoa returns sign = 0, decpt = 21, 3 digits:
    448 123
    449 	nextafter(d,-Infinity) = 1.2299999999999998e+20 = 0x441aabdf 2145b42f:
    450 	g_fmt gives "122999999999999980000"
    451 	dtoa returns sign = 0, decpt = 21, 3 digits:
    452 123
    453 Input: 1.23e-20:2 6
    454 Output: d =
    455 1.2300000000000001e-20 = 0x3bcd0ae4 cf767531, se = :2 6
    456 	g_fmt gives "1.23e-20"
    457 	dtoa(mode = 2, ndigits = 6):
    458 	dtoa returns sign = 0, decpt = -19, 3 digits:
    459 123
    460 	nextafter(d,+Infinity) = 1.2300000000000002e-20 = 0x3bcd0ae4 cf767532:
    461 	g_fmt gives "1.2300000000000002e-20"
    462 	dtoa returns sign = 0, decpt = -19, 3 digits:
    463 123
    464 	nextafter(d,-Infinity) = 1.2299999999999999e-20 = 0x3bcd0ae4 cf767530:
    465 	g_fmt gives "1.2299999999999999e-20"
    466 	dtoa returns sign = 0, decpt = -19, 3 digits:
    467 123
    468 Input: 1.23e-20:4 6
    469 Output: d =
    470 1.2300000000000001e-20 = 0x3bcd0ae4 cf767531, se = :4 6
    471 	g_fmt gives "1.23e-20"
    472 	dtoa(mode = 4, ndigits = 6):
    473 	dtoa returns sign = 0, decpt = -19, 3 digits:
    474 123
    475 	nextafter(d,+Infinity) = 1.2300000000000002e-20 = 0x3bcd0ae4 cf767532:
    476 	g_fmt gives "1.2300000000000002e-20"
    477 	dtoa returns sign = 0, decpt = -19, 3 digits:
    478 123
    479 	nextafter(d,-Infinity) = 1.2299999999999999e-20 = 0x3bcd0ae4 cf767530:
    480 	g_fmt gives "1.2299999999999999e-20"
    481 	dtoa returns sign = 0, decpt = -19, 3 digits:
    482 123
    483 Input: 1.23456789:2 6
    484 Output: d =
    485 1.2345678899999999 = 0x3ff3c0ca 4283de1b, se = :2 6
    486 	g_fmt gives "1.23456789"
    487 	dtoa(mode = 2, ndigits = 6):
    488 	dtoa returns sign = 0, decpt = 1, 6 digits:
    489 123457
    490 	nextafter(d,+Infinity) = 1.2345678900000001 = 0x3ff3c0ca 4283de1c:
    491 	g_fmt gives "1.2345678900000001"
    492 	dtoa returns sign = 0, decpt = 1, 6 digits:
    493 123457
    494 	nextafter(d,-Infinity) = 1.2345678899999997 = 0x3ff3c0ca 4283de1a:
    495 	g_fmt gives "1.2345678899999997"
    496 	dtoa returns sign = 0, decpt = 1, 6 digits:
    497 123457
    498 Input: 1.23456789:4 6
    499 Output: d =
    500 1.2345678899999999 = 0x3ff3c0ca 4283de1b, se = :4 6
    501 	g_fmt gives "1.23456789"
    502 	dtoa(mode = 4, ndigits = 6):
    503 	dtoa returns sign = 0, decpt = 1, 6 digits:
    504 123457
    505 	nextafter(d,+Infinity) = 1.2345678900000001 = 0x3ff3c0ca 4283de1c:
    506 	g_fmt gives "1.2345678900000001"
    507 	dtoa returns sign = 0, decpt = 1, 6 digits:
    508 123457
    509 	nextafter(d,-Infinity) = 1.2345678899999997 = 0x3ff3c0ca 4283de1a:
    510 	g_fmt gives "1.2345678899999997"
    511 	dtoa returns sign = 0, decpt = 1, 6 digits:
    512 123457
    513 Input: 1.23456589e+20:2 6
    514 Output: d =
    515 1.23456589e+20 = 0x441ac537 a660b997, se = :2 6
    516 	g_fmt gives "1.23456589e+20"
    517 	dtoa(mode = 2, ndigits = 6):
    518 	dtoa returns sign = 0, decpt = 21, 6 digits:
    519 123457
    520 	nextafter(d,+Infinity) = 1.2345658900000001e+20 = 0x441ac537 a660b998:
    521 	g_fmt gives "123456589000000010000"
    522 	dtoa returns sign = 0, decpt = 21, 6 digits:
    523 123457
    524 	nextafter(d,-Infinity) = 1.2345658899999998e+20 = 0x441ac537 a660b996:
    525 	g_fmt gives "123456588999999980000"
    526 	dtoa returns sign = 0, decpt = 21, 6 digits:
    527 123457
    528 Input: 1.23456589e+20:4 6
    529 Output: d =
    530 1.23456589e+20 = 0x441ac537 a660b997, se = :4 6
    531 	g_fmt gives "1.23456589e+20"
    532 	dtoa(mode = 4, ndigits = 6):
    533 	dtoa returns sign = 0, decpt = 21, 6 digits:
    534 123457
    535 	nextafter(d,+Infinity) = 1.2345658900000001e+20 = 0x441ac537 a660b998:
    536 	g_fmt gives "123456589000000010000"
    537 	dtoa returns sign = 0, decpt = 21, 6 digits:
    538 123457
    539 	nextafter(d,-Infinity) = 1.2345658899999998e+20 = 0x441ac537 a660b996:
    540 	g_fmt gives "123456588999999980000"
    541 	dtoa returns sign = 0, decpt = 21, 6 digits:
    542 123457
    543 Input: 1.23456789e-20:2 6
    544 Output: d =
    545 1.2345678899999999e-20 = 0x3bcd2681 471e7ada, se = :2 6
    546 	g_fmt gives "1.23456789e-20"
    547 	dtoa(mode = 2, ndigits = 6):
    548 	dtoa returns sign = 0, decpt = -19, 6 digits:
    549 123457
    550 	nextafter(d,+Infinity) = 1.2345678900000001e-20 = 0x3bcd2681 471e7adb:
    551 	g_fmt gives "1.2345678900000001e-20"
    552 	dtoa returns sign = 0, decpt = -19, 6 digits:
    553 123457
    554 	nextafter(d,-Infinity) = 1.2345678899999998e-20 = 0x3bcd2681 471e7ad9:
    555 	g_fmt gives "1.2345678899999998e-20"
    556 	dtoa returns sign = 0, decpt = -19, 6 digits:
    557 123457
    558 Input: 1.23456789e-20:4 6
    559 Output: d =
    560 1.2345678899999999e-20 = 0x3bcd2681 471e7ada, se = :4 6
    561 	g_fmt gives "1.23456789e-20"
    562 	dtoa(mode = 4, ndigits = 6):
    563 	dtoa returns sign = 0, decpt = -19, 6 digits:
    564 123457
    565 	nextafter(d,+Infinity) = 1.2345678900000001e-20 = 0x3bcd2681 471e7adb:
    566 	g_fmt gives "1.2345678900000001e-20"
    567 	dtoa returns sign = 0, decpt = -19, 6 digits:
    568 123457
    569 	nextafter(d,-Infinity) = 1.2345678899999998e-20 = 0x3bcd2681 471e7ad9:
    570 	g_fmt gives "1.2345678899999998e-20"
    571 	dtoa returns sign = 0, decpt = -19, 6 digits:
    572 123457
    573 Input: 1234565:2 6
    574 Output: d =
    575 1234565 = 0x4132d685 0, se = :2 6
    576 	g_fmt gives "1234565"
    577 	dtoa(mode = 2, ndigits = 6):
    578 	dtoa returns sign = 0, decpt = 7, 6 digits:
    579 123456
    580 	nextafter(d,+Infinity) = 1234565.0000000002 = 0x4132d685 1:
    581 	g_fmt gives "1234565.0000000002"
    582 	dtoa returns sign = 0, decpt = 7, 6 digits:
    583 123457
    584 Input: 1234565:4 6
    585 Output: d =
    586 1234565 = 0x4132d685 0, se = :4 6
    587 	g_fmt gives "1234565"
    588 	dtoa(mode = 4, ndigits = 6):
    589 	dtoa returns sign = 0, decpt = 7, 6 digits:
    590 123456
    591 	nextafter(d,+Infinity) = 1234565.0000000002 = 0x4132d685 1:
    592 	g_fmt gives "1234565.0000000002"
    593 	dtoa returns sign = 0, decpt = 7, 6 digits:
    594 123457
    595 Input: 1.234565:2 6
    596 Output: d =
    597 1.2345649999999999 = 0x3ff3c0c7 3abc9470, se = :2 6
    598 	g_fmt gives "1.234565"
    599 	dtoa(mode = 2, ndigits = 6):
    600 	dtoa returns sign = 0, decpt = 1, 6 digits:
    601 123456
    602 	nextafter(d,+Infinity) = 1.2345650000000001 = 0x3ff3c0c7 3abc9471:
    603 	g_fmt gives "1.2345650000000001"
    604 	dtoa returns sign = 0, decpt = 1, 6 digits:
    605 123457
    606 	nextafter(d,-Infinity) = 1.2345649999999997 = 0x3ff3c0c7 3abc946f:
    607 	g_fmt gives "1.2345649999999997"
    608 	dtoa returns sign = 0, decpt = 1, 6 digits:
    609 123456
    610 Input: 1.234565:4 6
    611 Output: d =
    612 1.2345649999999999 = 0x3ff3c0c7 3abc9470, se = :4 6
    613 	g_fmt gives "1.234565"
    614 	dtoa(mode = 4, ndigits = 6):
    615 	dtoa returns sign = 0, decpt = 1, 6 digits:
    616 123456
    617 	nextafter(d,+Infinity) = 1.2345650000000001 = 0x3ff3c0c7 3abc9471:
    618 	g_fmt gives "1.2345650000000001"
    619 	dtoa returns sign = 0, decpt = 1, 6 digits:
    620 123457
    621 	nextafter(d,-Infinity) = 1.2345649999999997 = 0x3ff3c0c7 3abc946f:
    622 	g_fmt gives "1.2345649999999997"
    623 	dtoa returns sign = 0, decpt = 1, 6 digits:
    624 123456
    625 Input: 1.234565e+20:2 6
    626 Output: d =
    627 1.234565e+20 = 0x441ac536 6299040d, se = :2 6
    628 	g_fmt gives "1.234565e+20"
    629 	dtoa(mode = 2, ndigits = 6):
    630 	dtoa returns sign = 0, decpt = 21, 6 digits:
    631 123456
    632 	nextafter(d,+Infinity) = 1.2345650000000002e+20 = 0x441ac536 6299040e:
    633 	g_fmt gives "123456500000000020000"
    634 	dtoa returns sign = 0, decpt = 21, 6 digits:
    635 123457
    636 	nextafter(d,-Infinity) = 1.2345649999999998e+20 = 0x441ac536 6299040c:
    637 	g_fmt gives "123456499999999980000"
    638 	dtoa returns sign = 0, decpt = 21, 6 digits:
    639 123456
    640 Input: 1.234565e+20:4 6
    641 Output: d =
    642 1.234565e+20 = 0x441ac536 6299040d, se = :4 6
    643 	g_fmt gives "1.234565e+20"
    644 	dtoa(mode = 4, ndigits = 6):
    645 	dtoa returns sign = 0, decpt = 21, 6 digits:
    646 123456
    647 	nextafter(d,+Infinity) = 1.2345650000000002e+20 = 0x441ac536 6299040e:
    648 	g_fmt gives "123456500000000020000"
    649 	dtoa returns sign = 0, decpt = 21, 6 digits:
    650 123457
    651 	nextafter(d,-Infinity) = 1.2345649999999998e+20 = 0x441ac536 6299040c:
    652 	g_fmt gives "123456499999999980000"
    653 	dtoa returns sign = 0, decpt = 21, 6 digits:
    654 123456
    655 Input: 1.234565e-20:2 6
    656 Output: d =
    657 1.234565e-20 = 0x3bcd267c ce45a93f, se = :2 6
    658 	g_fmt gives "1.234565e-20"
    659 	dtoa(mode = 2, ndigits = 6):
    660 	dtoa returns sign = 0, decpt = -19, 6 digits:
    661 123456
    662 	nextafter(d,+Infinity) = 1.2345650000000001e-20 = 0x3bcd267c ce45a940:
    663 	g_fmt gives "1.2345650000000001e-20"
    664 	dtoa returns sign = 0, decpt = -19, 6 digits:
    665 123457
    666 	nextafter(d,-Infinity) = 1.2345649999999998e-20 = 0x3bcd267c ce45a93e:
    667 	g_fmt gives "1.2345649999999998e-20"
    668 	dtoa returns sign = 0, decpt = -19, 6 digits:
    669 123456
    670 Input: 1.234565e-20:4 6
    671 Output: d =
    672 1.234565e-20 = 0x3bcd267c ce45a93f, se = :4 6
    673 	g_fmt gives "1.234565e-20"
    674 	dtoa(mode = 4, ndigits = 6):
    675 	dtoa returns sign = 0, decpt = -19, 6 digits:
    676 123456
    677 	nextafter(d,+Infinity) = 1.2345650000000001e-20 = 0x3bcd267c ce45a940:
    678 	g_fmt gives "1.2345650000000001e-20"
    679 	dtoa returns sign = 0, decpt = -19, 6 digits:
    680 123457
    681 	nextafter(d,-Infinity) = 1.2345649999999998e-20 = 0x3bcd267c ce45a93e:
    682 	g_fmt gives "1.2345649999999998e-20"
    683 	dtoa returns sign = 0, decpt = -19, 6 digits:
    684 123456
    685