| ??? 02/26/11 11:12 Read: times |
#181325 - Yes Responding to: ???'s previous message |
Yes, C++ have a different view of const, so a const-declared integer can be used like:
const int size=100; unsigned char my_array[size];But Keil C51 isn't a C++ compiler. And an open question is still what a C++ compiler would do when getting a "code" keyword to force a storage location. I'm not sure exactly what the Keil C51 compiler does - if Keil have given their compiler the "right" to assume that it knows the value of the const-declared character when generating the code or if it will have to perform a large number of movc a,@a+dptr - movc a,@a+pc would be more efficient but isn't applicable since we are talking about a single named object. |
| Topic | Author | Date |
| Multiple public definitions in code banking | 01/01/70 00:00 | |
| single const byte in code | 01/01/70 00:00 | |
| The meaning of 'const' in ANSI 'C' | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| Keil C51 isn't a C++ compiler | 01/01/70 00:00 | |
| Coding Standard Rules - Netrino | 01/01/70 00:00 | |
| Rule #2 is a bit broken or at least incompletely formulated | 01/01/70 00:00 | |
| issue with #define usage | 01/01/70 00:00 | |
| extern const code declaration | 01/01/70 00:00 | |
| Insufficient detail | 01/01/70 00:00 | |
| Conceptually wrong | 01/01/70 00:00 | |
| Thanks, it's working ! | 01/01/70 00:00 | |
| Why? | 01/01/70 00:00 | |
correction | 01/01/70 00:00 | |
| Fundamental 'C' programming error! | 01/01/70 00:00 |