What is the difference between string::at and string::operator[]?

by

Yes, there is one major difference: using .at() does a range check on index passed and throws an exception if it’s over the end of the string while operator[] just brings undefined behavior in that situation.

More Related Contents:

  1. Getting a segmentation error when printing my array of strings
  2. The array index doesnt show the character [closed]
  3. Pointer to string with spaces [closed]
  4. How do I tokenize a string in C++?
  5. std::cin input with spaces?
  6. C++ performance challenge: integer to std::string conversion
  7. std::string to char*
  8. Why can’t the switch statement be applied on strings?
  9. How do I create a random alpha-numeric string in C++?
  10. How to convert string to char array in C++?
  11. How to convert std::string to LPCSTR?
  12. What makes more sense – char* string or char *string? [duplicate]
  13. C/C++: Optimization of pointers to string constants
  14. Why are string literals const?
  15. Why does C++ allow an integer to be assigned to a string?
  16. Proper way to copy C strings
  17. Why are strings in C++ usually terminated with ‘\0’?
  18. invalid conversion from ‘const char*’ to ‘char’
  19. String to enum in C++
  20. writing directly to std::string internal buffers
  21. What is the proper function for comparing two C-style strings?
  22. How to read entire stream into a std::string?
  23. Counting the number of occurrences of a string within a string
  24. C++: Can a macro expand “abc” into ‘a’, ‘b’, ‘c’?
  25. Converting bool to text in C++
  26. Do I have to use #include beside ?
  27. Fastest way to Convert String to Binary?
  28. Should I return std::strings?
  29. Copying non null-terminated unsigned char array to std::string
  30. Getline keeps on getting newline character. How can I avoid this?

Leave a Comment