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Command-line arguments are passed into programs using the arguments of main(). Here's a quick example, for a program called by typing
"progname file.txt 1 2.7":#include #include using namespace std;int main(int argc, char *argv[]){char *progname, *filename;int value1;float value2;if (argc != 4) {cerr << "usage: " << argv[0] << " file.txt int float" << endl;exit(1);}progname = argv[0]; // argv[0] is the executable's name itselffilename = argv[1];value1 = atoi(argv[2]); // convert C-string to int with atoi()value2 = atof(argv[3]); // convert C-string to float with atof()cout << progname << " " << filename << " " << value1 << " " << value2 <exit(0);}
Write a program called plus that will display asterisks in the shape of a plus sign which has the height and width specified by the user. You must only allow entry of an odd numb
Program is to read the contents of a file: void main() { ifstream fin("ascii.txt"); char ch; while(! fin.eof()) { fin>>ch; cout }
Should I explicitly call a destructor on a local variable? Explain it.
Explain about the Floating point Constants in c language? A floating point constant is the number that contains either a fraction or decimal part. If an exponent is present its
integer size
The interest charged on a loan banking facility is calculated based on principal amount, rate and time. implement a C program that can be used to automate the calculation of the in
Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send
Write a program that predicts users’ age (0-128 years old) with at most 7 questions. The game starts with asking the user whether he/she is younger or older than G (an initial gues
Explain Object-oriented programming Object-oriented programming (OOP) attempts to meet these requirements, providing methods for managing enormous complexity, achieving reuse o
A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of the c
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