2d barcode generator vb.net FUNCTIONS in Software

Print EAN13 in Software FUNCTIONS

FUNCTIONS
Recognizing EAN-13 Supplement 5 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Drawing EAN / UCC - 13 In None
Using Barcode generator for Software Control to generate, create EAN / UCC - 13 image in Software applications.
[CHAP. 5
European Article Number 13 Reader In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
Paint EAN-13 In Visual C#
Using Barcode encoder for .NET framework Control to generate, create European Article Number 13 image in .NET applications.
5.13 SCOPE The scope of variable names was described in Section 3.5. The scope of a name consists of that part of the program where it can be used. It begins where the name is declared. If that declaration is inside a function (including the main() function), then the scope extends to the end of the innermost block that contains the declaration. A program can have several objects with the same name if their scopes are nested or disjoint. This is illustrated by the next example, which is an elaboration of Example 3.7 on page 40. EXAMPLE 5.21 Nested and Parallel Scopes
Make GTIN - 13 In .NET Framework
Using Barcode encoder for ASP.NET Control to generate, create EAN13 image in ASP.NET applications.
EAN13 Creation In .NET Framework
Using Barcode creator for Visual Studio .NET Control to generate, create European Article Number 13 image in VS .NET applications.
In this example, f() and g() are global functions, and the first x is a global variable. So their scope includes the entire file. This is called file scope. The second x is declared inside main() so it has local scope; i.e., it is accessible only from within main(). The third x is declared inside an internal block, so its scope is restricted to that internal block. Each x scope overrides the scope of the previously declared x, so there is no ambiguity when the identifier x is referenced. The scope resolution operator :: is used to access the last x whose scope was overridden; in this case, the global x whose value is 11: void f(); // f() is global void g(); // g() is global int x = 11; // this x is global
EAN / UCC - 13 Creator In Visual Basic .NET
Using Barcode generator for VS .NET Control to generate, create European Article Number 13 image in VS .NET applications.
Code128 Drawer In None
Using Barcode drawer for Software Control to generate, create Code 128 Code Set A image in Software applications.
int main() { int x = 22; { int x = 33; cout << "In block inside main(): x = " << x << endl; } // end scope of internal block cout << "In main(): x = " << x << endl; cout << "In main(): ::x = " << ::x << endl; // accesses global x f(); g(); } // end scope of main() void f() { int x = 44; cout << "In f(): x = " << x << endl; } void g() { cout << "In g(): x = " << x << endl; } In block inside main(): x = 33 In main(): x = 22 In main(): ::x = 11 In f(): x = 44 In g(): x = 11
GS1 - 13 Creation In None
Using Barcode encoder for Software Control to generate, create EAN13 image in Software applications.
USS-128 Drawer In None
Using Barcode creator for Software Control to generate, create EAN / UCC - 13 image in Software applications.
// end scope of f()
Generate USS Code 39 In None
Using Barcode maker for Software Control to generate, create Code 39 Extended image in Software applications.
Generate Data Matrix In None
Using Barcode printer for Software Control to generate, create Data Matrix image in Software applications.
// end scope of g()
Create British Royal Mail 4-State Customer Code In None
Using Barcode creator for Software Control to generate, create British Royal Mail 4-State Customer Barcode image in Software applications.
Generating Barcode In VS .NET
Using Barcode printer for .NET Control to generate, create bar code image in .NET framework applications.
The x initialized with 44 has scope limited to the function f() which is parallel to main(); but its scope is also nested within the global scope of the first x, so its scope overrides that of both the first x within f(). In this example, the only place where the scope of the first x is not overridden is within the function g().
Creating Code128 In Java
Using Barcode generation for Java Control to generate, create Code128 image in Java applications.
Print EAN / UCC - 13 In None
Using Barcode encoder for Office Word Control to generate, create EAN13 image in Word applications.
TeamLRN
GS1 DataBar Maker In .NET
Using Barcode generation for .NET framework Control to generate, create GS1 DataBar image in VS .NET applications.
Print Code 39 Extended In Objective-C
Using Barcode printer for iPad Control to generate, create Code39 image in iPad applications.
CHAP. 5]
Code 39 Reader In VB.NET
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET applications.
Code 39 Extended Printer In Java
Using Barcode encoder for Java Control to generate, create Code 39 image in Java applications.
FUNCTIONS
5.14 OVERLOADING C++ allows you to use the same name for different functions. As long as they have different parameter type lists, the compiler will regard them as different functions. To be distinguished, the parameter lists must either contain a different number of parameters, or there must be at least one position in their parameter lists where the types are different. EXAMPLE 5.22 Overloading the max() Function
Example 5.6 on page 93 defined a max() function for two integers. Here we define two other max() functions in the same program: int max(int, int); int max(int, int, int);
int main() { cout << max(99,77) << " " << max(55,66,33); } int max(int x, int y) { // returns the maximum of the two given integers: return (x > y x : y); } int max(int x, int y, int z) { // returns the maximum of the three given integers: int m = (x > y x : y); // m = max(x,y) return (z > m z : m); } 99 66 Three different functions, all named max, are defined here. The compiler checks their parameter lists to determine which one to use on each call. For example, the first call passes two ints, so the version that has two ints in its parameter list is called. (If that version had been omitted, then the system would promote the two ints 99 and 77 to the doubles 99.0 and 77.0 and then pass them to the version that has two doubles in its parameter list.)
Overloaded functions are widely used in C++. Their value will become more apparent with the use of classes in 12. 5.15 THE main() FUNCTION Every C++ program requires a function named main(). In fact, we can think of the complete program itself as being made up of the main() function together with all the other functions that are called either directly or indirectly from it. The program starts by calling main(). Since main() is a function with return type int, it is normal to end its block with
return 0;
although most compilers do not require this. Some compilers allow it to be omitted but will issue a warning when it is. The value of the integer that is returned to the operating system should be the number of errors counted; the value 0 is the default.
Copyright © OnBarcode.com . All rights reserved.