| ??? 09/11/06 12:22 Read: times |
#124029 - the most often forgotten quality guarantee Responding to: ???'s previous message |
One of the real advantages of symbolic constants is that they allow you to automatically protect against such accidental inconsistencies; eg,
#if (LENGTH & 0x01) == 1 #error LENGTH must be even! #endif the most often forgotten quality guarantee is the defense against 'accidental errors'. another example would be char c = char a + char b without an error declaration if the result is more than 255 where Andys example is 'static' i.e. caught at compile time, the 'dynamic catchers' as the one I show above are equally, if not more, important. Many pesky bugs are a result of somebody stating "that will never happen" and thus not inserting a defense agaist it. The aspirin industry just LOVES code without 'defensive inserts' Erik |
| Topic | Author | Date |
| ^= , Checksum, Problem | 01/01/70 00:00 | |
| Have you tried a simulator? | 01/01/70 00:00 | |
| well, | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| volatile? | 01/01/70 00:00 | |
| volatile | 01/01/70 00:00 | |
| using ICE ? | 01/01/70 00:00 | |
| update code (working) and clarification | 01/01/70 00:00 | |
| Style | 01/01/70 00:00 | |
| Think about your variable types | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Magic numbers | 01/01/70 00:00 | |
| but don't be "oversmart" | 01/01/70 00:00 | |
| example? | 01/01/70 00:00 | |
| advantages | 01/01/70 00:00 | |
the most often forgotten quality guarantee | 01/01/70 00:00 | |
| so, use structures! | 01/01/70 00:00 | |
| padding | 01/01/70 00:00 | |
| | 01/01/70 00:00 | |
| Actual Output | 01/01/70 00:00 | |
| C99 | 01/01/70 00:00 | |
| making up your own | 01/01/70 00:00 | |
| Names | 01/01/70 00:00 | |
| FYI - C99 Exact- & Minimum-width types | 01/01/70 00:00 |