Check if a string contains a string in C++

Use std::string::find as follows:

if (s1.find(s2) != std::string::npos) {
    std::cout << "found!" << '\n';
}

Note: “found!” will be printed if s2 is a substring of s1, both s1 and s2 are of type std::string.

Related Posts:

  1. Replace part of a string with another string
  2. How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
  3. Remove last character from C++ string
  4. Why the switch statement cannot be applied on strings?
  5. How to convert string to char array in C++?
  6. How can I convert a std::string to int?
  7. Easiest way to convert int to string in C++
  8. std::string to char*
  9. How to convert string to char array in C++?
  10. C++ — expected primary-expression before ‘ ‘
  11. C++ string to double conversion
  12. Conversion from string to char – c++
  13. What is `CString`?
  14. How do I include the string header?
  15. Differences between C++ string == and compare()?
  16. How to convert a char array to a string?
  17. How do I convert a double into a string in C++?
  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. How do I iterate over the words of a string?
  22. Returning an empty string : efficient way in c++
  23. C++ string to double conversion
  24. What is use of c_str function In c++
  25. How to reverse an std::string? [duplicate]
  26. std::string to char*
  27. How to convert a std::string to const char* or char*
  28. How do I tokenize a string in C++?
  29. Why use string::iterator rather than index?
  30. Why am I getting string does not name a type Error?
  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. How can I convert const char* to string and then back to char*?
  37. std::string formatting like sprintf
  38. Sorting Characters Of A C++ String
  39. basic_string::_M_construct null not valid after constructing subvector of strings
  40. How to copy a string of std::string type in C++?
  41. How to return a string from a C++ function?
  42. std::out_of_range error?
  43. What is the difference between isdigit() and isnumber()?
  44. Convert char* to string C++
  45. printf with std::string?
  46. Convert a String In C++ To Upper Case
  47. Right way to split an std::string into a vector
  48. Read whole ASCII file into C++ std::string
  49. C++: std does not have member “string”
  50. Right way to split an std::string into a vector
  51. string subscript out of range error
  52. C++ String Variable Declaration
  53. Returning an empty string : efficient way in c++
  54. Split a string into an array in C++
  55. splitting a string into an array in C++ without using vector
  56. Remove spaces from std::string in C++
  57. Remove spaces from std::string in C++
  58. c++ convert string to hex
  59. How can I iterate through a string and also know the index (current position)?
  60. c++ parse int from string [duplicate]
  61. Hash function for a string
  62. C++ strings and pointers
  63. How to Convert a C++ String to Uppercase
  64. std::wstring VS std::string
  65. C++ Simple hangman game
  66. std::cin input with spaces?
  67. Remove First and Last Character C++
  68. C++ Remove punctuation from String
  69. C++ Convert string (or char*) to wstring (or wchar_t*)
  70. How to alphabetically sort strings?
  71. Hash function for a string
  72. Reading string by char till end of line C/C++
  73. Dynamically allocated string array, then change it’s value?
  74. Fastest way to Convert String to Binary?
  75. Why I cannot cout a string?
  76. How to print a string in C++
  77. std::string length() and size() member functions
  78. How to convert QString to int?
  79. Which is faster C++ String length() or size()?
  80. How do I create a random alpha-numeric string in C++?
  81. Trying to use int in getline
  82. error: switch quantity not an integer
  83. Reading a string from file c++
  84. How to change string into QString?
  85. Function stoi not declared
  86. Converting String to Cstring in C++
  87. c++ sizeof( string )
  88. How to do std::string indexof in C++ that returns index of matching string?
  89. variable or field declared void
  90. Function stoi not declared
  91. Understanding error “terminate called after throwing an instance of ‘std::length_error’ what(): basic_string::_S_create Aborted (core dumped)”
  92. convert string to size_t
  93. ‘setprecision’ is not a member of ‘std’
  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