Tips For Fixing Gcc Ignore Qualifiers Errors
August 21, 2021
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If your computer has an error code mistakenly rejected by gcc, check out these troubleshooting tips.
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Error: Passing “const A” as “this” rejects the argument to “void A :: hi ()”.Qualifier [-fpermissive]
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I don’t understand why I am getting this error, I am not returning the problem, just passing the reference to the main object and that’s it.
#include Class Apublicly: avoid hello () std :: cout << "Hello." << std :: endl; ;Class Bpublicly: undo, get (const A & a) Hey (); ;Class Cpublicly: invalid check (const A & a) Bb; b. get (s); ;int main (int argc, char ** argv) Aa; AGAINST; CC. received); Returns 0;
I change it with constant precision, but then I try to call methods in the same method and I get the same error.
#include Class Apublicly: Sayha whitespace () const Hey(); Peace(); Hello empty () std :: cout << "world" << std :: endl; Undo the world () std :: cout << "world" << std :: endl; ;Class Bpublicly: invalid check (const A & a) a.sayhi (); ;Class Cpublicly: obtained unnecessarily (const A & a) Bb; b. get (s); ;int main (int argc, char ** argv) Aa; AGAINST; CC. received); return 0;
Error: Passing const A as the this argument to void A :: hello ()remove qualifiers [-fpermissive]
Error: 'const A' as argument 'this' from 'void A :: world ()' completed successfullyremove qualifiers [-fpermissive]
wanted 16 Nov 14 at 23:54
1,594
Not The Answer You Are Looking For? Check Out The Other Questions Tagged C ++, Or Post Your Own Question If You Wish.
Your hi
formula is not declared due to const
in your class A. Therefore, the compiler cannot guarantee that choosing a.Will hi ( )
change something related to a
, so an error will be thrown.
More information on constant member functions can be found here.
995
answered Nov 17 '14 at 0:00
7,587
As mentioned earlier, one way to do this is to make the
hi
method const-qualified.Another possibility was to use const_cast when calling the
hi
method
A & ref Const_cast = (a);ref.hi ();
Reply sent on January 21
11
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