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Home » Tip Bank » C++
Language: C++
Expertise: Beginner
Jun 26, 2000

Shorthand for Assignment Expressions

For recursive assignment expressions such as the following:

 
x = x+5;  
x= x/5;
x = x * 5;

C++ defines shorter versions that eliminate the need to repeat the variable's name twice:

 
x+=5; //equivalent to x=x+5
x/=5; // equivalent to x=x/5
x*=5; // equivalent to x=x*5

The shorthand versions are more convenient as they save a few keystrokes. In addition, they minimize the chance of making typos in variables' names, especially when long names are used.

Danny Kalev
 
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