Greetings,
I am currently in the process of switching compilers.
From microtech to GNU GCC/G++ coldfire..
I keep receiving the following error and can not find a simple solution:
warning: ANSI C++ forbids declaration `interrupt' with no type
I know the line that it is failing on:
friend interrupt void IrqCtmMCSM2(void);
Could someone offer suggestions please?
Thanks for your time.
It probably says that it doesn't recognize "interrupt" as a keyword, but as a simple identifier. GCC has a special instruction "__attribute__" which can be used to do something similar, like this:
Code:friend __attribute__((interrupt)) void IrqCtmMCSM2(void);
Devoted my life to programming...
That was a great solution!! thank you!
However, it presented another error.
`IrqCtmMCSM2' undeclared (first use this function)
The prototype is in the .hpp file and it is included in the .cpp.
I do not understand why it thinks that it is not declared.
Would you mind helping with this as well?
Last edited by Jscott; 07-08-2015 at 12:11 PM.
Does that happen inside the same file or in a separate file? Are you sure you have included the appropriate headers?
Devoted my life to programming...
The header file is included and the first use is in the .cpp file.
however, in my header file i am using...
#ifdef _GNUC_
friend __attribute__((interrupt)) void IrqCtmMCSM2(void);
friend __attribute__((interrupt)) void IrqCtmDASM3(void);
friend __attribute__((interrupt)) void IrqCtmDASM4(void);
friend __attribute__((interrupt)) void IrqCtmPWSM5(void);
friend __attribute__((interrupt)) void IrqCtmPWSM6(void);
friend __attribute__((interrupt)) void IrqCtmPWSM7(void);
friend __attribute__((interrupt)) void IrqCtmPWSM8(void);
friend __attribute__((interrupt)) void IrqCtmDASM9(void);
friend __attribute__((interrupt)) void IrqCtmDASM10(void);
friend __attribute__((interrupt)) void IrqCtmMCSM11(void);
friend __attribute__((interrupt)) void IrqCtmFCSM12(void);
#else
friend interrupt void IrqCtmMCSM2(void);
friend interrupt void IrqCtmDASM3(void);
friend interrupt void IrqCtmDASM4(void);
friend interrupt void IrqCtmPWSM5(void);
friend interrupt void IrqCtmPWSM6(void);
friend interrupt void IrqCtmPWSM7(void);
friend interrupt void IrqCtmPWSM8(void);
friend interrupt void IrqCtmDASM9(void);
friend interrupt void IrqCtmDASM10(void);
friend interrupt void IrqCtmMCSM11(void);
friend interrupt void IrqCtmFCSM12(void);
#endif
I do not believe its working properly
Yeah, you need two underscores before and after GNUC: __GNUC__
Devoted my life to programming...
That works!
Im new to this forum, is there a way to rep??
Thanks for your help!
You can "Like" GReaper's post(s).
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
Welp I am back in regards to the question/solution that I asked yesterday,
Okay, heres what is happening...
The following line of code worked perfectly for declaring the interrupt function in the header file.
However, I tried to do the same thing in the code file..Code:friend__attribute__((interrupt)) voidIrqCtmMCSM2(void);
This keeps on giving me the following error:Code:__attribute__((interrupt)) void IrqCtmMCSM2 (void) {}
warning: `interrupt' attribute directive ignored
I have searched online and there where 'old' posts about the GNU compiler not supporting this attribute.
Does anyone have any experience with the GNU compiler from an embedded point of view?
Thanks for your time guys! I really appreciate it!
-J
