Set the decimal value
(value)
| 1334 | |
| 1335 | # Set the decimal value |
| 1336 | def set(value) |
| 1337 | if (@_buffer.offset + fbe_offset + fbe_size) > @_buffer.size |
| 1338 | return |
| 1339 | end |
| 1340 | |
| 1341 | # Extract decimal parts |
| 1342 | sign, significant_digits, _, exponent = value.split |
| 1343 | number = significant_digits.to_i(10) |
| 1344 | if exponent > significant_digits.length |
| 1345 | number *= 10 ** (exponent - 1) |
| 1346 | scale = 0 |
| 1347 | else |
| 1348 | scale = significant_digits.length - exponent |
| 1349 | end |
| 1350 | |
| 1351 | # Check for decimal number overflow |
| 1352 | bits = number.bit_length |
| 1353 | if (bits < 0) || (bits > 96) |
| 1354 | # Value too big for .NET Decimal (bit length is limited to [0, 96]) |
| 1355 | write_count(fbe_offset, 0, fbe_size) |
| 1356 | return |
| 1357 | end |
| 1358 | |
| 1359 | # Check for decimal scale overflow |
| 1360 | if (scale < 0) || (scale > 28) |
| 1361 | # Value scale exceeds .NET Decimal limit of [0, 28] |
| 1362 | write_count(fbe_offset, 0, fbe_size) |
| 1363 | return |
| 1364 | end |
| 1365 | |
| 1366 | # Write unscaled value to bytes 0-11 |
| 1367 | bytes = [] |
| 1368 | while number > 0 |
| 1369 | bytes.insert(-1, number & 0xFF) |
| 1370 | number >>= 8 |
| 1371 | end |
| 1372 | bytes = bytes.pack("C*") |
| 1373 | write_bytes(fbe_offset, bytes) |
| 1374 | write_count(fbe_offset + bytes.length, 0, 12 - bytes.length) |
| 1375 | |
| 1376 | # Write scale at byte 14 |
| 1377 | write_byte(fbe_offset + 14, scale) |
| 1378 | |
| 1379 | # Write signum at byte 15 |
| 1380 | write_byte(fbe_offset + 15, (sign == -1) ? 0x80 : 0) |
| 1381 | end |
| 1382 | end |
| 1383 | |
| 1384 | # Fast Binary Encoding bytes field model |