Component bsltf_simpletesttype [Package bsltf]

Provide a non-allocating test class without type traits. More...

Namespaces
namespace	bsltf

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Detailed Description

Outline

• Purpose
• Classes
• Description
  • Attributes
  • Usage
    • Example 1: Printing the Supported Traits

Purpose:

Provide a non-allocating test class without type traits.

Classes:

bsltf::SimpleTestType

non-allocating test class without type traits

See also:

Component bsltf_templatetestfacility

Description:

This component provides a single, unconstrained in-core (value-semantic) attribute class, SimpleTestType, that does not take an allocator nor define any type traits. SimpleTestType can be used during testing as the parameterized type of a class templates to ensure classes with the similar properties will function correctly. Note that this is particular valuable when testing a container template that supports different types of contained elements.

Attributes:

  Name                Type         Default
  ------------------  -----------  -------
  data                int          0

• data: representation of the class value

Usage:

This section illustrates intended use of this component.

Example 1: Printing the Supported Traits:

Suppose we wanted to print the supported traits of this test type.

First, we create a function template printTypeTraits with a parameterized TYPE:

  template <class TYPE>
  void printTypeTraits()
      // Prints the traits of the parameterized 'TYPE' to the console.
  {
      if (bslma::UsesBslmaAllocator<TYPE>::value) {
          printf("Type defines bslma::UsesBslmaAllocator.\n");
      }
      else {
          printf(
               "Type does not define bslma::UsesBslmaAllocator.\n");
      }

      if (bslmf::IsBitwiseMoveable<TYPE>::value) {
          printf("Type defines bslmf::IsBitwiseMoveable.\n");
      }
      else {
          printf("Type does not define bslmf::IsBitwiseMoveable.\n");
      }
  }

Now, we invoke the printTypeTraits function template using SimpleTestType as the parameterized TYPE:

  printTypeTraits<SimpleTestType>();

Finally, we observe the console output:

  Type does not define bslma::UsesBslmaAllocator.
  Type does not define bslmf::IsBitwiseMoveable.