| ??? 01/28/08 21:44 Read: times |
#150036 - Const vs #define Responding to: ???'s previous message |
A #define is not a constant. It is a preprocessor directive. The preprocessor simply replaces the macro with whatever it's defined with (which may be blank).
This is not the same as a const, which is typed. A const is preferred over #define for defining constants for reasons which should be obvious. -a |
| Topic | Author | Date |
| The art of typecasting | 01/01/70 00:00 | |
| I'd like to disagree | 01/01/70 00:00 | |
| two comments | 01/01/70 00:00 | |
| Two comments on comments | 01/01/70 00:00 | |
| The Art of correct Constants | 01/01/70 00:00 | |
| int - number of bits unknown | 01/01/70 00:00 | |
| Corrected Art of correct Constants | 01/01/70 00:00 | |
| More assumptions | 01/01/70 00:00 | |
| stdint.h | 01/01/70 00:00 | |
| Or, in the absence of stdint.h... | 01/01/70 00:00 | |
| Const vs #define | 01/01/70 00:00 | |
| Opps! | 01/01/70 00:00 | |
| which may be a reason to prefer #define over const | 01/01/70 00:00 | |
| enum | 01/01/70 00:00 | |
| Varies | 01/01/70 00:00 | |
| Know Thy Stuff - enum | 01/01/70 00:00 | |
| You are right | 01/01/70 00:00 | |
| Know Thy Stuff | 01/01/70 00:00 | |
| And... | 01/01/70 00:00 | |
| I'll pass(cal) on that one :) | 01/01/70 00:00 | |
| Everything in C defaults to int, which is signed | 01/01/70 00:00 | |
| Never overlook lint | 01/01/70 00:00 | |
| before Steve says it... | 01/01/70 00:00 | |
| Pascal | 01/01/70 00:00 | |
| strong typing | 01/01/70 00:00 | |
| why Ada never took off | 01/01/70 00:00 | |
| Wirth-less | 01/01/70 00:00 | |
Why ? | 01/01/70 00:00 |