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ssrs gs1 128 ANAPPENDOPERATOR in Software
10.7 ANAPPENDOPERATOR QR Code Decoder In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Quick Response Code Creation In None Using Barcode creator for Software Control to generate, create QR Code image in Software applications. The += operator is one of a series of arithmetic assignment operators that combine the arithmetic operators (+, -, *, etc.) with the assignment operator. Like most operators, the arithmetic assignment operators can be overloaded to perform whatever operations you want. However, it is unwise to define an overloaded operator to do anything that is not similar to the action of the original operator. The += operator is defined for integer types to be equivalent to the addition operator followed by the assignment operator. For example, the following two blocks have the same effect: Quick Response Code Decoder In None Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications. Paint Denso QR Bar Code In Visual C#.NET Using Barcode encoder for Visual Studio .NET Control to generate, create Denso QR Bar Code image in .NET applications. { int n += m; } { int temp = m + n; int n = temp; } Generating QR-Code In VS .NET Using Barcode generator for ASP.NET Control to generate, create QR Code image in ASP.NET applications. Draw QR Code In Visual Studio .NET Using Barcode creation for .NET Control to generate, create QR Code 2d barcode image in .NET framework applications. The only difference is that the second block uses an extra int. In our String class, we overloaded the += operator to preserve this meaning, so that the following two blocks will have the same effect: QR Code Maker In VB.NET Using Barcode drawer for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in VS .NET applications. Creating UPC-A Supplement 5 In None Using Barcode encoder for Software Control to generate, create UPC-A Supplement 5 image in Software applications. { String s2 += sl; } ( String temp = sl + s2; int s2 = temp; } GTIN - 13 Generation In None Using Barcode printer for Software Control to generate, create EAN / UCC - 13 image in Software applications. Code 3 Of 9 Generation In None Using Barcode encoder for Software Control to generate, create ANSI/AIM Code 39 image in Software applications. A String CLASS
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Encode Code11 In None Using Barcode generation for Software Control to generate, create USD - 8 image in Software applications. Making Code 128 Code Set C In .NET Framework Using Barcode drawer for Visual Studio .NET Control to generate, create Code128 image in VS .NET applications. Here is the overloaded += operator for our String class: Painting ECC200 In Java Using Barcode drawer for Android Control to generate, create Data Matrix image in Android applications. Make GS1 - 13 In Visual Basic .NET Using Barcode generation for .NET framework Control to generate, create EAN-13 image in .NET applications. String& String::operator+=(const String& s) len += s.len; char* tempbuf = new char[len+l]; strcpy(tempbuf, buf); strcat(tempbuf, s.buf); delete [] buf; buf = tempbuf; return *this; ECC200 Recognizer In None Using Barcode reader for Software Control to read, scan read, scan image in Software applications. Code 3 Of 9 Generation In Java Using Barcode drawer for Java Control to generate, create USS Code 39 image in Java applications. First it increments its len field by the length of the String object passed to it. Then it allocates the total number of bytes needed for the new string and holds this space in the temporary C-string tempbuf. Then, just as it does with the addition operator (page 280), it uses the strcpy ( > and strcat ( ) functions defined in the string. h header file to copy its buf to t empbuf and then append s . buf to it. Now it can release the memory allocated to its original buffer and then assign the t empbuf pointer to it. UCC-128 Generation In VS .NET Using Barcode maker for ASP.NET Control to generate, create EAN128 image in ASP.NET applications. EAN / UCC - 14 Printer In Java Using Barcode encoder for Java Control to generate, create EAN 128 image in Java applications. EXAMPLE 10.9 Testing the += Operator
This test driver invokes the + = operator to append the string I object name: #include "String.h" ( 17 9 2 - 18 7 1) " onto the String
main0 { String name('Tharles Babbage"); tout << "name = [" << name c< "]\n"; name += " (1792-1871)"; tout << "name = [" << name << "]\n"; nasrre = [ChaxJes Babbage] name = [Charles Babbage (1792~187W Note that the third constructor will be invoked to convert the C-string String object before it is passed to the += operator. (1792-1871) I into a
10.8 ACCESS FUNCTIONS The operator
operator char*0 const; is a conversion operator that converts a String object into a C-string. It has the reverse effect of the constructor String (const char*); which converts a C-string into a String object.
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This conversion operator has a very simple implementation: String: :operator { return buf; > Its buf char*0 const
data member is the C-string that we want. - Note that this conversion operator is an access function: it simply provides public access to the private data member buf. It is not really an inverse of the String (const char* ) constructor because it does not create a new C-string. As an access function, it merely provides public access to the buf C-string that already exists within the String object. EXAMPLE 10.10 Testing the Conversion to C-String Operator #include '5tring.h" main0 1 String name("John von Neumann"); tout << "name = ['I c< name << "]\n"; char* s = name; tout << "s = [ 'I << s -c-c 'I ] \n" ; nae = [John van Neumann] s = [John van Neumann] // name is a String object // s is a C-string
Here is the overloaded subscript operator for our String class: char& String: :operator[] (unsigned i) const buf[i]; return
It simply returns the ith element of the object s buf buffer.
EXAMPLE 10.11 Testing the Subscript Operator #include '5tring.h" main0 { String name("Charles Babbage"); tout -x "name = ['I << name << II]\W; tout << "name[8] = ['I << name[8] << "]\n"; name[8] = 'Cl; tout << "name[8] = [I' << name[8] << "]\nI'; tout -x "name = ['I << name cc "]\n";
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