C++ (Cpp) STRING::insert Examples

Programming Language: C++ (Cpp)

Class/Type: STRING

Method/Function: insert

Examples at hotexamples.com: 3

The C++ string insert function is a method that allows you to insert a string or a portion of a string at a specific position within another string. It is a standard library function that is included in the package.

Here are some examples of how to use the string insert function:

Example 1: Inserting a substring into a string at a specified position

#include 
#include 

using namespace std;

int main()
{
    string str = "hello world";
    string substr = " my";
    str.insert(5, substr);
    cout << str << endl; // outputs "hello my world"

    return 0;
}

In this example, we start with the original string "hello world". We then create a substring " my" that we want to insert into the original string. We use the insert method to insert the substring into the original string starting at position 5 (which is the space between "hello" and "world").

Example 2: Inserting a character into a string at a specified position

#include 
#include 

using namespace std;

int main()
{
    string str = "hello world";
    char ch = ',';
    str.insert(5, 1, ch);
    cout << str << endl; // outputs "hello, world"

    return 0;
}

In this example, we want to insert a comma into the original string at position 5. To do this, we create a character variable 'ch' that contains the comma, and then use the insert method to insert it into the original string at position 5. Overall, the C++ string insert function is a powerful tool for manipulating strings in your code. Its functionality is built into the package in the standard library and can be readily used in any C++ program.

C++ (Cpp) STRING::insert - 3 examples found. These are the top rated real world C++ (Cpp) examples of STRING::insert extracted from open source projects. You can rate examples to help us improve the quality of examples.

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Example #1

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File: quote-argument-ms.hpp Project: EmilyBragg/profiling-tool

 /*!
  * Add escaping to each quote character (") by preceding it with a backslash (\).
  */
 void EscapeQuotes()
 {
     size_t quote = _quoted.find_first_of('"');
     while (quote != STRING::npos)
     {
         _quoted.insert(quote, 1, '\\');
         quote = _quoted.find_first_of('"', quote + 2);
     }
 }

Example #2

Show file

File: quote-argument-ms.hpp Project: EmilyBragg/profiling-tool

    /*!
     * Add quotes around the string if it contains any whitespace.
     */
    void AddQuotes(const T *whitespace)
    {
        if (_quoted.find_first_of(whitespace) != STRING::npos)
        {
            _quoted.insert(0, 1, '"');
            _quoted.append(1, '"');

            // If the last character (prior to adding the quotes) was a backslash,
            // it needs to be escaped now because it precedes a quote.
            //
            size_t quote = _quoted.size() - 1;
            if (_quoted[quote-1] == '\\')
            {
                size_t notSlash = _quoted.find_last_not_of('\\', quote-2);
                size_t numSlashes = quote - notSlash - 1;
                _quoted.insert(quote, numSlashes, '\\');
            }
        }
    }

Example #3

Show file

File: quote-argument-ms.hpp Project: EmilyBragg/profiling-tool

 /*!
  * Add escaping to each sequence of backslashes that immediately precedes
  * a quote character.  Each backslash in such a sequence must be escaped
  * with another backslash.  Note that backslashes that are not part of a
  * sequence that immediately precedes a quote are NOT escaped.  E.g.:
  *
  *  \a" -> \a"
  *  foo\bar"baz\\"fum -> foo\bar"baz\\\\"fum
  */
 void EscapeBackSlashes()
 {
     size_t quote = _quoted.find_first_of('"', 1);
     while (quote != STRING::npos)
     {
         size_t numSlashes = 0;
         size_t notSlash = _quoted.find_last_not_of('\\', quote-1);
         if (notSlash != quote-1)
         {
             if (notSlash == STRING::npos)
                 numSlashes = quote;
             else
                 numSlashes = quote - notSlash - 1;
             _quoted.insert(quote, numSlashes, '\\');
         }
         quote = _quoted.find_first_of('"', quote + numSlashes + 1);
     }
 }