To/From Code

	Languages
BROWSEBYLANGUAGE Access VBA ASP Classic C# C++ C++/CLI Corel Paradox Delphi Delphi Prism Java JavaScript Perl PHP VB Classic VB.Net

	Categories
BROWSEBYCATEGORY +Tool Basics +Language Basics +Language Details +Data Structures +Statements +Operators +Commands +Database +OOP Basics +OOP Details

	C++/CLI Guides
C++/CLI To/From Conversion Guides C++/CLI and ASP Classic C++/CLI and C# C++/CLI and C++ C++/CLI and Corel Paradox C++/CLI and Delphi C++/CLI and Delphi Prism C++/CLI and Java C++/CLI and JavaScript C++/CLI and Perl C++/CLI and PHP C++/CLI and VB Classic C++/CLI and VB.Net

Cross Ref Guide

C++/CLILANGUAGE

C++/CLI

C++/CLIANDACCESS VBATOC

Overview

+Tool Basics

Report Tools Overview

+Language Basics

+Language Details

+Statements

+Operators

Comparison Opera...◄╣

+OOP Basics

+OOP Details

	Members-Only
Sign in to see member-only pages.

► KB ► To/From Guides ► C++/CLI

Print This

Comparison Operators (C++/CLI and Access VBA Cross Reference Guide)

By Mike Prestwood

C++/CLI versus Access VBA: A side by side comparison between C++/CLI and Access VBA.

Operators

A language symbol used for assignment, comparison, computational, or as a logical.

Comparison Operators

[Other Languages]

General Info: Round Floating Point Numbers

When comparing floating point numbers, make sure you round to an acceptable level of rounding for the type of application you are using.

Languages Focus

A comparison operator compares two values either literals as in "Hello" and 3 or variables as in X and Counter. Most languages use the same operators for comparing both numbers and strings. Perl, for example, uses separate sets of comparison operators for numbers and strings.

C++/CLI: ==, !=

Same as standard C++. Common comparison operators:

==	equal
!=	not equal
<	less than
>	greater than
<=	less than or equal
>=	greater than or equal

Syntax Example:

//Does C++/CLI evaluate the math correctly? No!

if (0.1 + 0.1 + 0.1 == 0.3)
  MessageBox::Show("correct");
else
  MessageBox::Show("not correct");

Access VBA: =, <>

Save as VB Classic. Common comparison operators:

=	equal
<>	not equal
<	less than
>	greater than
<=	less than or equal
>=	greater than or equal

Syntax Example:

//Does Access evaluate the math correctly? No!

If 0.1 + 0.1 + 0.1 = 0.3 Then
  MsgBox "correct"
Else
  MsgBox "not correct"
End If