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  1. //Devin Scheu                                  CS1A                                    Chapter 10, P. 588, #1
  2. //
  3. /**************************************************************
  4. *
  5. * DETERMINE LENGTH OF C-STRING
  6. * ____________________________________________________________
  7. * This program finds the number of characters in a C-string
  8. * entered by the user.
  9. * ____________________________________________________________
  10. * INPUT
  11. * inputString : The C-string entered by the user
  12. *
  13. * OUTPUT
  14. * stringLength : The number of characters in the string
  15. *
  16. **************************************************************/
  17.  
  18. #include <iostream>
  19. #include <iomanip>
  20.  
  21. using namespace std;
  22.  
  23. // Function to count length of C-string using pointer notation
  24. int getStringLength(const char* str) {
  25.     const char* ptr = str;
  26.     while (*ptr != '\0') {
  27.         ptr++;
  28.     }
  29.     return ptr - str;
  30. }
  31.  
  32. int main () {
  33.  
  34. 	//Variable Declarations
  35. 	const int MAX_SIZE = 100;      //OUTPUT     - Maximum size of the input string
  36. 	char inputString[MAX_SIZE];    //INPUT      - The C-string entered by the user
  37. 	int stringLength;              //OUTPUT     - The number of characters in the string
  38.  
  39. 	//Prompt for Input and Echo
  40. 	cout << "Enter a string (max 99 characters): ";
  41. 	cin.getline(inputString, MAX_SIZE);
  42. 	cout << inputString << endl;
  43.  
  44. 	//Calculate Length
  45. 	stringLength = getStringLength(inputString);
  46.  
  47. 	//Separator and Output Section
  48. 	cout << "-------------------------------------------------------" << endl;
  49. 	cout << "OUTPUT:" << endl;
  50.  
  51. 	//Output Result
  52. 	cout << left << setw(25) << "String Length:" << right << setw(15) << stringLength << endl;
  53.  
  54. } //end of main()
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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Triangle
stdout
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Enter a string (max 99 characters): Triangle
-------------------------------------------------------
OUTPUT:
String Length:                         8
https://ideone.com/DPAWbZ
language:
C++ (gcc 8.3)
created:
9 days ago
visibility:
public

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