How can I convert const char* to string and then back to char*?

A: The std::string class has a constructor that takes a char const*, so you simply create an instance to do your conversion.

B: Instances of std::string have a c_str() member function that returns a char const* that you can use to convert back to char const*.

auto my_cstr = "Hello";        // A
std::string s(my_cstr);        // A
// ... modify 's' ...
auto back_to_cstr = s.c_str(); // B

Related Posts:

  1. How to convert a std::string to const char* or char*
  2. std::string to char*
  3. Conversion from string to char – c++
  4. How to convert a char array to a string?
  5. std::string to char*
  6. Convert char* to string C++
  7. How to sort with a lambda?
  8. Why the switch statement cannot be applied on strings?
  9. How to convert string to char array in C++?
  10. How can I convert a std::string to int?
  11. outputting ascii table in C++
  12. How to convert string to char array in C++?
  13. C++ string to double conversion
  14. What is `CString`?
  15. What is meant with “const” at end of function declaration? [duplicate]
  16. What is an unsigned char?
  17. Difference between `constexpr` and `const`
  18. Split a string using C++11
  19. How do I iterate over the words of a string?
  20. How to convert an instance of std::string to lower case
  21. Check if a string contains a string in C++
  22. What is the difference between char s[] and char *s?
  23. Returning an empty string : efficient way in c++
  24. Replace part of a string with another string
  25. What is the difference between const int*, const int * const, and int const *?
  26. How to reverse an std::string? [duplicate]
  27. C++ Parsing input string to variables
  28. Difference between const reference and normal parameter
  29. Why am I getting string does not name a type Error?
  30. What is the difference between a static and const variable?
  31. C++ deprecated conversion from string constant to ‘char*’
  32. identifier “string” undefined?
  33. Press Enter to Continue
  34. Converting a vector to string
  35. Parsing a comma-delimited std::string
  36. std::string formatting like sprintf
  37. Sorting Characters Of A C++ String
  38. basic_string::_M_construct null not valid after constructing subvector of strings
  39. How to copy a string of std::string type in C++?
  40. How to return a string from a C++ function?
  41. std::out_of_range error?
  42. How to create a dynamically-allocated array of const objects, but have values assigned to them?
  43. What is the difference between isdigit() and isnumber()?
  44. printf with std::string?
  45. Convert a String In C++ To Upper Case
  46. Right way to split an std::string into a vector
  47. Read whole ASCII file into C++ std::string
  48. C++: std does not have member “string”
  49. Right way to split an std::string into a vector
  50. string subscript out of range error
  51. C++ String Variable Declaration
  52. Returning an empty string : efficient way in c++
  53. Split a string into an array in C++
  54. C++: Expression must have a constant value when declaring array inside function
  55. What is the difference between const_iterator and non-const iterator in the C++ STL?
  56. c++ convert string to hex
  57. How can I iterate through a string and also know the index (current position)?
  58. c++ parse int from string [duplicate]
  59. Hash function for a string
  60. std::wstring VS std::string
  61. C++ Simple hangman game
  62. std::cin input with spaces?
  63. Remove First and Last Character C++
  64. C++ Remove punctuation from String
  65. C++ string to enum
  66. C++ Convert string (or char*) to wstring (or wchar_t*)
  67. C++ – Assigning null to a std::string
  68. Hash function for a string
  69. Reading string by char till end of line C/C++
  70. Comparing the values of char arrays in C++
  71. Dynamically allocated string array, then change it’s value?
  72. Convert char array to single int?
  73. Fastest way to Convert String to Binary?
  74. Why I cannot cout a string?
  75. How to print a string in C++
  76. How do I create a random alpha-numeric string in C++?
  77. Is string::compare reliable to determine alphabetical order?
  78. Trying to use int in getline
  79. error: switch quantity not an integer
  80. Reading a string from file c++
  81. How to change string into QString?
  82. casting int to char using C++ style casting
  83. Remove last character from C++ string
  84. Converting String to Cstring in C++
  85. How to do std::string indexof in C++ that returns index of matching string?
  86. variable or field declared void
  87. Function stoi not declared
  88. Using cin for char array
  89. Understanding error “terminate called after throwing an instance of ‘std::length_error’ what(): basic_string::_S_create Aborted (core dumped)”
  90. convert string to size_t
  91. ‘setprecision’ is not a member of ‘std’
  92. Use of ‘const’ for function parameters
  93. Using cin to input a single letter into a char
  94. enum to string in modern C++11 / C++14 / C++17 and future C++20
  95. Converting bool to text in C++
  96. Why are there two different getline() functions (if indeed there are)?
  97. Why does my program give “NULL used in arithmetic”
  98. How to find and replace string?
  99. Declaration is incompatible with type
  100. I’m getting the error “stoi is not a member of std” in myprogramminglab [duplicate]

Leave a Comment