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Learning Qlik Sense: The Official Guide

Learning Qlik Sense: The Official Guide

By : Christopher Ilacqua, Henric Cronström, James Richardson
3 (14)
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Learning Qlik Sense: The Official Guide

Learning Qlik Sense: The Official Guide

3 (14)
By: Christopher Ilacqua, Henric Cronström, James Richardson

Overview of this book

Learning Qlik® Sense is for anyone seeking to understand and utilize the revolutionary new approach to business intelligence offered by Qlik Sense. Familiarity with the basics of business intelligence will be helpful when picking up this book, but not essential.
Table of Contents (14 chapters)
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2
2. Variables and Memory
13
Index

Macros with arguments

We can also write macros that accept arguments. Here's an example of a macro with an argument:

#define println(X) cout << X << endl;

What this macro will do is every time println("Some value") is encountered in the code, the code on the right-hand side (cout << "Some value" << endl) will be copied and pasted on the console. Notice how the argument between the brackets is copied in the place of X. Say we had the following line of code:

println( "Hello there" )

This will be replaced by the following statement:

cout << "Hello there" << endl;

Macros with arguments are exactly like very short functions. Macros cannot contain any newline characters in them.

Advice – use inline functions instead of macros with arguments

You have to know about how macros with arguments work because you will encounter them in C++ code a lot. Whenever possible, however, many C++ programmers prefer to use inline functions...

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