| ??? 06/21/06 19:53 Read: times |
#118796 - extern-ing a function declaration? Responding to: ???'s previous message |
Alistair George said:
Hi its been ages since I was using my compiler.
Can make source OK. Paths and correct source file list are defined but when I go to compile there are errors relating to: extern void lcdinit(void); lcdinit(); error 'undefined symbol' _lcdinit Dunno why the function declaration is externed. It should be declared in a header file that's included by the C source, and not externed. Anyways: your code calls a function lcdinit(). The extern modifier says that "somewhere a function called lcdinit() has a definition." However, that definition isn't available. You need a source file that has the implementation of lcdinit(), and a header file that declares lcdinit()'s interface so it can be included in and referenced by other sources. -a |
| Topic | Author | Date |
| Hi-tech C compile problem | 01/01/70 00:00 | |
| Linker | 01/01/70 00:00 | |
| Less Detail | 01/01/70 00:00 | |
| 'C' Globals | 01/01/70 00:00 | |
| extern-ing a function declaration? | 01/01/70 00:00 | |
| well... | 01/01/70 00:00 | |
| The Secret | 01/01/70 00:00 | |
| case was not an issue | 01/01/70 00:00 | |
| Case still not an issue | 01/01/70 00:00 | |
| Incorrect deduction | 01/01/70 00:00 | |
| Maybe Not | 01/01/70 00:00 | |
| Linker | 01/01/70 00:00 | |
make | 01/01/70 00:00 | |
| use Win98SE in a virtual machine, QEMU? | 01/01/70 00:00 | |
| Vmware | 01/01/70 00:00 | |
| Just a guess | 01/01/70 00:00 | |
| possibly, but | 01/01/70 00:00 | |
| after all the 'logicl' possibilities hav | 01/01/70 00:00 |