0
#include<iostream>
#include<vector>
#include<string>
std::vector<std::string> parse (const std::string& s, const char delim)
{
std::vector<std::string> result {};
auto start = 0U;
auto end = s.find (delim);
while (end != s.npos)
{
result.push_back (s.substr(start, end - start));
start = ++end;
end = s.find (delim, start);
}
result.push_back (s.substr (start, s.npos - start));
return result;
}
std::vector<std::string> parse (const std::string& s, const std::string& delim)
{
std::vector<std::string> result {};
auto start = 0U;
auto end = s.find (delim);
while (end != s.npos)
{
result.push_back (s.substr(start, end - start));
start = end + delim.length();
end = s.find (delim, start);
}
result.push_back (s.substr (start, s.npos - start));
return result;
}
int main()
{
std::string str1 = "This is a string that will be parsed by a single-space delimiter.";
std::string str2 = "This==is==a==string==that==will==be==parsed==by==equal==operator.";
std::string str3 = "This string has no delimiter.";
std::cout << str1 << std::endl;
std::vector<std::string> v1 = parse (str1, ' ');
for (auto i : v1 )
std::cout << i << std::endl;
std::cout << std::endl;
std::cout << str2 << std::endl;
std::vector<std::string> v2 = parse (str2, "==");
for (auto i : v2 )
std::cout << i << std::endl;
std::cout << std::endl;
std::cout << str3 << std::endl;
std::vector<std::string> v3 = parse (str3, '\\');
for (auto i : v3 )
std::cout << i << std::endl;
std::cout << std::endl;
}
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∙ 9y ago
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How can you get a specific string from large string using c plus plus strings?
std::string::substr();
What is the difference between a C plus plus string and a C-style string?
A std::string is an object that encapsulates an array of type char whereas a C-style string is a primitive array with no members. A std::string is guaranteed to be null-terminated but a C-style string is not.
C plus plus library functions for string operations?
You can use "string" class in C++ for string operations or you may use c style string functions as well. #include <string> String class in C++ provides all basic function to operate on strings. you may details descriptin at http://www.cplusplus.com/reference/string/string/
What is the program to create a string class which stores a string value in c plus plus?
C++ already provides a string class in the C++ standard template library. #include<iostream> #include<string> int main() { using namespace std; string s {"Hello world!"}; cout << s << endl; }
C plus plus program to count digit in a string?
Use the following function to count the number of digits in a string. size_t count_digits (const std::string& str) { size_t count = 0; for (std::string::const_iterator it=str.begin(); it!=str.end(); ++it) { const char& c = *it; if (c>='0' && c<='9'); ++count; } return count; }
How can you get a specific string from large string using c plus plus strings?
std::string::substr();
What is the difference between a C plus plus string and a C-style string?
A std::string is an object that encapsulates an array of type char whereas a C-style string is a primitive array with no members. A std::string is guaranteed to be null-terminated but a C-style string is not.
Is there a datatype string in c plus plus?
Yes.
C plus plus library functions for string operations?
You can use "string" class in C++ for string operations or you may use c style string functions as well. #include <string> String class in C++ provides all basic function to operate on strings. you may details descriptin at http://www.cplusplus.com/reference/string/string/
What is the role of plus operator between two string constant?
The plus operator between string constants allows string concatination: string a = "Hello, "; string b = "World!"; string c = a + b; The output of c would be: "Hello, World!".
What is the program to create a string class which stores a string value in c plus plus?
C++ already provides a string class in the C++ standard template library. #include<iostream> #include<string> int main() { using namespace std; string s {"Hello world!"}; cout << s << endl; }
How print the string with double cot in c plus plus language?
console.wrikerle("""");
How can you write a c plus plus program to display natural numbers from 1 to n?
void print_naturals (std::ostream& os, unsigned max, char delimit) { for (int i=1; i<=max; ++i) os << i << delimit; } Example usage: // Print list of first 100 naturals: print_naturals (std::cout, 100, '\n');
Why can't the c plus plus compiler find the string object?
The most likely reason that the C++ compiler can't find the string object is just that you've forgotten to include the string header file.Code Example:#include // so you can use C++ strings using namespace std; // so you can write 'string' instead of 'std::string' string sMyString; // declare a string
C program plus copy of string to another?
strcpy
Do I need to write a program to find a substring in a given string in c plus plus?
No.
C plus plus program to count digit in a string?
Use the following function to count the number of digits in a string. size_t count_digits (const std::string& str) { size_t count = 0; for (std::string::const_iterator it=str.begin(); it!=str.end(); ++it) { const char& c = *it; if (c>='0' && c<='9'); ++count; } return count; }
