Programming and Graphics

332 Introduction to C++ Programming and Graphics

Matlab C++

#include<iostream>

a=input(”); cin>>a;

b=input(’Please enter b:’) cout<<“Please enter b:\n”;

cin>>b;

disp(a) cout<<a<<endl;

fprintf(’%10.5f\n’,a) #include<iomanip>

cout<<setprecision(5)

<<setw(10); cout<<a

<<endl;

name = fopen(’input.dat’); #include<iostream>

ifstream name;

name.open(“input.dat”);

name = fopen(’input.dat’,’wt’) #include<fstream>

ifstream name(“input.dat”);

fprintf(name, ’%f %f %f\n’,a,b,c) name>>a>>b>>c

>>endl;

fprintf(name, ’%f’,a(i,j)) name>>a[i][j];

fclose(name) name.close();

name=fopen(’output.dat’,’wt’); #include<fstream>

ofstream name;

name.open(“output.dat”);

#include<fstream>

name=fopen(’output.dat’,’wt’); ofstream name(“output.dat”);

fprintf(name,’%f’,a) name<<a;

fclose(name) name.close();

Table C.5 EquivalentMatlab/C++ structures and calls regarding input and
output (I/O). The#include statements are placed at the top of the file
containing the C++ code.iostreamcontains the header files of the standard
input/output (keyboard/monitor) stream.fstreamcontains the header files
of thefilestream.