What is the output of the following code given the program was called using the command-line:...
What is the output of the following code given the program was called using the command-line: a.out input.txt output.txt int main(int argc, char* argv[]) { cout << argc; return 0; } Select one: a. 1 b. 2 c. 3 d. 6 which asnwer it is
Homework Answers
c) 3
because the number of command line arguments (a.out input.txt output.txt) is 3.
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What is the output of the following code given the program was
called using the command-line:...
Command line input In C++ it is possible to accept command line arguments. Command-line arguments are...
Command line input In C++ it is possible to accept command line arguments. Command-line arguments are given after the name of a program in command-line operating systems like Linux and are passed in to the program from the operating system. To use command line arguments in the program, it must first understand the full declaration of the main function, which until now has accepted no arguments. In fact, main can accept two arguments: one argument is number of command line...
Objective: Use input/output files, strings, and command line arguments. Write a program that processes a text...
Objective: Use input/output files, strings, and command line arguments. Write a program that processes a text file by removing all blank lines (including lines that only contain white spaces), all spaces/tabs before the beginning of the line, and all spaces/tabs at the end of the line. The file must be saved under a different name with all the lines numbered and a single blank line added at the end of the file. For example, if the input file is given...
C programming Question1 (a) Write a C program that will print out all command line arguments,...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
C Language Programming. Using the program below - When executing on the command line only this...
C Language Programming. Using the program below - When executing on the command line only this program name, the program will accept keyboard input and display such until the user does control+break to exit the program. The new code should within only this case situation “if (argc == 1){ /* no args; copy standard input */” Replace line #20 “filecopy(stdin, stdout);” with new code. Open read a text file “7NoInputFileResponse.txt” that contains a message “There were no arguments on the...
In C Programming Adding to your program in part A, go through the command line arguments...
In C Programming Adding to your program in part A, go through the command line arguments and find the largest and smallest arguments by alphabetical order. Note that you should not need to sort your arguments, but instead compare them and save the smallest and largest strings as you go through. For example, if called with ./reverse one two three: It would display the output for part A: Three two one And then it would display The smallest string was:...
Modify When executing on the command line having only this program name, the program will accept...
Modify When executing on the command line having only this program name, the program will accept keyboard input and display such until the user does control+break to exit the program. The new code should within only this case situation “if (argc == 1){ /* no args; copy standard input */” Replace line #20 “filecopy(stdin, stdout);” with your new code. Open read a text file “7NoInputFileResponse.txt” that contains a message “There were no arguments on the command line to be tested...
1. Suppose you wrote a program that reads data from cin. You are now required to...
1. Suppose you wrote a program that reads data from cin. You are now required to reimplement it so that you can read data from a file. You are considering the following changes. I. Declare an ifstream variable in_file II. Replace all occurrences of cin with in_file III. Replace all occurrences of > > and get_line with the appropriate operations for ifstream objects What changes do you need to make? I, II, and III II and III I and III...
1. What would be the output of the following lines of code: int num = 2;...
1. What would be the output of the following lines of code: int num = 2; switch(num){ case 1: cout << "1"; case 2: cout << "2"; case 3: cout << "3"; case 4: cout << "4"; } 2. What would be the output of the following code: char op = '*'; switch(op){ case '+': cout << "Addition"; break; case '-': cout << "Subtraction"; break; case '/': cout << "Division"; break; default: cout << "Invalid"; } 3. What would be...
QUESTION 6 What is the output of following C code? struct numbers { int x...
QUESTION 6 What is the output of following C code? struct numbers { int x = 2; int y = 3; } int main() { struct numbers nums; nums.x = 110; nums.y = 100; printf("%d\n%d", nums.x, nums.y); return 0; } A. Compile-time Error B. 110 100 C. 2 3 D. Run-time Error 2 points QUESTION 7 What is the output of following C code? typedef struct student { char *stud; }s1; int main() { s1 s; s.stud...
This is the given code: /** * This program uses a Taylor Series to compute a...
This is the given code:
/**
* This program uses a Taylor Series to compute a value
* of sine.
*
*/
#include<stdlib.h>
#include<stdio.h>
#include<math.h>
/**
* A function to compute the factorial function, n!.
*/
long factorial(int n) {
long result = 1, i;
for(i=2; i<=n; i++) {
result *= i;
}
return result;
}
int main(int argc, char **argv) {
if(argc != 3) {
fprintf(stderr, "Usage: %s x n ", argv[0]);
exit(1);
}
double x = atof(argv[1]);
int...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
This is the given code:
/**
* This program uses a Taylor Series to compute a value
* of sine.
*
*/
#include<stdlib.h>
#include<stdio.h>
#include<math.h>
/**
* A function to compute the factorial function, n!.
*/
long factorial(int n) {
long result = 1, i;
for(i=2; i<=n; i++) {
result *= i;
}
return result;
}
int main(int argc, char **argv) {
if(argc != 3) {
fprintf(stderr, "Usage: %s x n ", argv[0]);
exit(1);
}
double x = atof(argv[1]);
int...
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