I have a function:
that returns true or false.Code:bool tester(const char *mytest)
In another function,
I'm calling:
But the compiler is saying this doesn't work.Code:if (tester(const char *mytest) == true) printf("Good to go.");
Why? How can I fix it?
Thank you.
Example:
Code:#include <stdbool.h>
Thanks, but that didn't do it.
error: 'mytest' undeclared (first use in this function)
You need to call it with the actual string you want to call it on, not the parameter name in the function prototype.
perhaps? Obviously assuming that "mytest" is a pointer to a char of some sort.Code:if (tester(mytest) == true)
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
Full code, por favor.
But I just want to know if it returned true... the string it is calling is in another function so it will say its an unitialized reference
Well -- but if you don't have the string, then you can't call the function. Tell us what you're actually trying to do (preferably with code) and we'll go from there.
You can't pass a string that you haven't got to a function. You would need to pass back the string to the function where you need it (or perhaps pass back the bool result of the check?).Originally Posted by pollypocket4eva
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
Good suggestion.
Genious!
>> Full code, por favor.
I am seriously considering making that my new signature. *sigh*
Last edited by Sebastiani; 11-17-2008 at 07:08 PM. Reason: grammer
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
I would, but my haiku strikes my preference for now.
You do realize that it prints "I like haiku muchbye", right?
Last edited by Sebastiani; 11-17-2008 at 07:10 PM. Reason: um, grammer.
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
I was more concerned about the number of syllables each line of code used. But I can fix it
You can't call a function in one place, then check it's return value in another place.
Check the return value when you call it properly, then you can do whatever you want with that return value.
"I am probably the laziest programmer on the planet, a fact with which anyone who has ever seen my code will agree." - esbo, 11/15/2008
"the internet is a scary place to be thats why i dont use it much." - billet, 03/17/2010
