RE: C++ Tutorial - Templates

raspgraph — Thu, 06 Jul 2017 08:27:16 GMT

I have followed your program and think I have this right as you described in your text.

int main()

{

double d1 = 2.3;

double d2 = 3.4;

cout << Add(d1, d2) << endl;

int i1 = 4;

int i2 = 5;

cout << Add(i1, i2) << endl;

return 0;

}

template <class T>

T Add(T a, T b)

{

return a + b;

}

BUT the template doesn't seem to relate to main.

following errors occur when compiling within raspberry pi terminal

pi@raspberrypi:~/Desktop $ g++ -std=c++0x 05_template.cpp -o05_template

05_template.cpp: In function ‘int main()’:

05_template.cpp:5:2: error: ‘cout’ was not declared in this scope

cout << Add(d1, d2) << endl;

05_template.cpp:5:20: error: ‘Add’ was not declared in this scope

cout << Add(d1, d2) << endl;

05_template.cpp:5:25: error: ‘endl’ was not declared in this scope

cout << Add(d1, d2) << endl;

I'm obviously missing something in the tutorial but can't quite see it

Former Member — Thu, 23 Apr 2015 05:18:43 GMT

Very nice.