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(C++) std::string

STL container for storing char. Or: 'the thing you use for storing words'.

To use them, the STL header file string.h must be #included.

#include <iostream>

#include <string>

int main()

{

const std::string s1 = "Hello";

const std::string s2 = "World";

const std::string s3 = s1 + " " + s2;

std::cout << s3 << std::endl;

}

Use std::string instead of an array of char [0][1][2][3].

std::string code snippets

Note that among these are also more general container code snippets.

0. AnsiToStr, convert AnsiString to std::string

1. Append two std::strings, Append

2. Append, append two std::strings

3. Ask user to input a double, AskUserForDouble

4. Ask user to input a std::string, AskUserForString

5. AskUserForDouble, ask user to input a double

6. AskUserForString, ask user to input a std::string

7. Check if std::string can be converted to double, IsDouble

8. Check if std::string can be converted to integer, IsInt

9. Convert AnsiString to std::string

10. Convert double to std::string

11. Convert integer to std::string

12. Convert std::string to AnsiString

13. Convert std::string to double

14. Convert std::string to integer

15. Convert std::string to lower case

16. Convert std::string to upper case

17. Convert std::string to WideString

18. Convert WideString to std::string

19. DoubleToStr, convert double to std::string

20. Find std::string in std::string

21. FindString, find std::string in std::string

22. Get the extension of a filename

23. Get the path of a filename, GetPath

24. GetExtension, get the extension of a filename

25. GetPath, get the path of a filename

26. IntToStr, convert integer to std::string

27. IsDouble, check if std::string can be converted to double

28. IsInt, check if std::string can be converted to integer

29. LoopReader, reading a container looped

30. Reading a container looped, LoopReader

31. Remove the extension of a filename

32. Remove the path of a filename, RemovePath

33. RemoveExtension, remove the extension of a filename

34. RemovePath, remove the path of a filename

35. Replace a substring by another in a certain std::string once, ReplaceOnce

36. Replace all substrings by another in a certain std::string, ReplaceAll

37. ReplaceAll, replace all substrings by another in a certain std::string

38. ReplaceOnce, replace a substring by another in a certain std::string once

39. Seperate a std::string into multiple std::strings, seperated by a seperator

40. SeperateString, seperate a std::string into multiple std::strings, seperated by a seperator

41. StrToAnsi, convert std::string to AnsiString

42. StrToDouble, convert std::string to double

43. StrToInt, convert std::string to integer

44. StrToLower, convert std::string to lower case

45. StrToUpper, convert std::string to upper case

46. StrToWide, convert std::string to WideString

47. Trim the leading and trailing spaces from a std::string

48. Trim, trim the leading and trailing spaces from a std::string

49. WideToStr, convert WideString to std::string

External links

* Boost string algorithms

References

[0] Bjarne Stroustrup. The C++ Programming Language (3rd edition). ISBN: 0-201-88954-4 Chapter 5.8.5: 'Use string rather then zero-terminated arrays of char'.

[1] Herb Sutter and Andrei Alexandrescu. C++ coding standards: 101 rules, guidelines, and best practices. ISBN: 0-32-111358-6. Chapter 77: 'Use vector and string instead of arrays.'

[2] Scott Meyers. Effective STL. ISBN: 0-201-74962-9. Item 13: 'Prefer vector and string to dynamically allocated arrays'

[3] Jarrod Hollingworth, Bob Swart, Mark Cashman, Paul Gustavson. Sams C++ Builder 6 Developer's Guide. ISBN: 0-672-32480-6. Chapter 3.1: 'Use a string class instead of char*'

Go back to Richel Bilderbeek's C++ page.

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