error: expected ')' before

I'm writing a program where I have to read in information from a data file into an array of structures then print it out in a formatted chart. I'm getting these error messages when I try to compile and I can't figure out how to get rid of them. I know I'm missing something simple but I'm just not seeing it:

trip.c:17: error: expected ')' before 'legs'
trip.c:55: error: expected ')' before 'legs'
trip.c: In function 'GetGasInfo':
trip.c:92: warning: format '%lf' expects type 'double *', but argument 2 has type 'double'
trip.c:94: warning: format '%lf' expects type 'double *', but argument 2 has type 'float *'

Thank you for your time.

I would guess there may be something wonky with your definition of LEG.

Also: scanf requires pointers, and since pMileage is a pointer, you should pass it. To read into a float variable, you must not use %lf, you must use %f.

Thanks.

You are including the appropriate header where this struct is defined, yes? Otherwise the compiler doesn't know what LEG means.

Once you fix that, you'll get a new set of errors, but those are easy to fix.

Yeah, the correct header is there.

Quote:

---

Originally Posted by AKeiTyrian

Yeah, the correct header is there.

---

Well, where? You appear to have the struct defined in main.c. You should have a header like "leg.h" which contains just the typedef struct LEG thing, and then included (via #include "leg.h") in your other .cpp file.

Remember: source files are compiled completely separately from each other. Any data structures and the like have to appear in every source code file they are used in.

Thanks. That helped a lot.

http://cpwiki.sourceforge.net/A_pointer_on_pointers
Don't neglect the pointers! They are very important to handle right!