std::strchr (3) - Linux Manuals

std::strchr: std::strchr


std::strchr - std::strchr


Defined in header <cstring>
const char* strchr( const char* str, int ch );
char* strchr( char* str, int ch );

Finds the first occurrence of the character static_cast<char>(ch) in the byte string pointed to by str.
The terminating null character is considered to be a part of the string and can be found if searching for '\0'.


str - pointer to the null-terminated byte string to be analyzed
ch - character to search for

Return value

Pointer to the found character in str, or a null pointer if no such character is found.


// Run this code

  #include <iostream>
  #include <cstring>

  int main()
    const char *str = "Try not. Do, or do not. There is no try.";
    char target = 'T';
    const char *result = str;

    while ((result = std::strchr(result, target)) != NULL) {
      std::cout << "Found '" << target
                << "' starting at '" << result << "'\n";

      // Increment result, otherwise we'll find target at the same location


  Found 'T' starting at 'Try not. Do, or do not. There is no try.'
  Found 'T' starting at 'There is no try.'

See also

        searches an array for the first occurrence of a character
memchr (function)
        find characters in the string
find (public member function of std::basic_string<CharT,Traits,Allocator>)
        finds the first occurrence of a wide character in a wide string
wcschr (function)
        finds the last occurrence of a character
strrchr (function)
        finds the first location of any character from a set of separators
strpbrk (function)