Can someone tell me how to fix the following error? I am not a software guy and have tried multiple things but not figured it out.
H file:
C file:Code:typedef struct mainScreen_t{ uint8_t line; uint8_t position; char value[16]; }mainScreen_t; const mainScreen_t Screen1 = {0, 10, {"GPS"}}; const mainScreen_t Screen2 = {1, 10, {"A/D"}};
Error:Code:mainScreen_t lvl_1[LCD_MAIN_MENUS] = {Screen1, Screen2};
Code:"../main.c", line 41: error #28: expression must have a constant value
I've no idea, it works for me.
What compiler are you using?Code:$ cat bar.c #include <stdio.h> #include <stdint.h> typedef struct mainScreen_t{ uint8_t line; uint8_t position; char value[16]; }mainScreen_t; #define LCD_MAIN_MENUS 2 const mainScreen_t Screen1 = {0, 10, {"GPS"}}; const mainScreen_t Screen2 = {1, 10, {"A/D"}}; mainScreen_t lvl_1[LCD_MAIN_MENUS] = {Screen1, Screen2}; int main() { printf("%s\n", lvl_1[0].value); } $ gcc bar.c $ ./a.out GPS $ gcc -std=c89 -ansi -pedantic bar.c $ ./a.out GPS
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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