Change decimal to 64 bits

[syyyr]

We do not need such precision, the test was a GPS value.

[github-actions]

Code coverage report for 2d8305e

Coverage difference

❌ Code coverage worsened.

Filename	Stmts	Miss	Cover	Missing
src/decimal.rs	+9	+2	+2.18%	70, 71, 72, 75, 76, 80, 81
TOTAL	+9	+2	-0.01%

Overall coverage

Click to expand

Filename	Stmts	Miss	Cover	Missing
src/chainpack.rs	635	14	97.80%	87, 120, 270-282, 287
src/rpcvalue.rs	686	178	74.05%	70, 72-76, 78, 80-81, 84-99, 126-128, 156-158, 174-176, 216-218, 257-262, 299-301, 413-425, 433, 450, 457-462, 480, 487-512, 520, 532, 559, 576, 593, 603, 613, 623, 643, 653, 663, 673, 683, 697-726, 926-943, 982-984, 988, 998, 1004-1013, 1017, 1020-1026, 1030, 1033-1038, 1042, 1054, 1066, 1072, 1078, 1081-1096, 1118-1123, 1135-1152
src/json.rs	411	23	94.40%	221, 257, 265, 278, 319-333, 349, 394-396, 408-409, 518
src/lib.rs	9	0	100.00%
src/datetime.rs	161	59	63.35%	22-27, 91-95, 103, 109-114, 118-120, 141, 146-148, 154-155, 165-166, 181, 185-232
src/metamap.rs	106	34	67.92%	44-51, 67-72, 86-93, 99, 126-143
src/textrdwr.rs	234	30	87.18%	47-72, 97, 132, 135, 145, 148, 160, 168-170, 213, 229, 241, 251, 267, 309
src/writer.rs	18	0	100.00%
src/reader.rs	64	5	92.19%	20-22, 65, 83
src/cpon.rs	526	85	83.84%	35-37, 41, 45-47, 55, 60, 65-67, 80, 84-86, 100, 107-114, 133-154, 166-205, 308-309, 337-338, 344, 366, 379-383, 413, 429, 455-460, 497, 499-503, 518, 640
src/util.rs	84	43	48.81%	24, 31-77
src/decimal.rs	72	27	62.50%	30-31, 51-54, 59-63, 65, 69-86
libshvproto-macros/src/lib.rs	291	30	89.69%	13, 24, 27, 41, 111, 115-118, 135, 239, 259, 262-268, 277-281, 295, 303-306, 399, 435, 494
src/bin/cp2cp.rs	100	36	64.00%	97-98, 118-124, 137, 141-142, 146-176
TOTAL	3397	564	83.40%

HTML reports

You can use GitHub CLI to download HTML coverage reports and open them automatically using this command:

(cd "$(mktemp -d)" && gh run -R silicon-heaven/libshvproto-rs download -n libshvproto-cov-html-2d8305e6d7adca38f1889bafdb6f0df2774bd779 && ls -1 | xargs -n1 xdg-open)

You can download the HTML reports manually here.