Learn about the compile-time impact of templates and what considerations you need to be aware of when using header files.
- [Instructor] If you're familiar with defining classes…in C++, you may try to define a template class…in a header file,…and the template class implementation in a separate file,…as in this example.…Here we have a great application for templates.…It's a stack type, a stack class, and it will implement…a very simple, fixed size LIFO stack using a template.…So, it should work with any type.…And we've got the header file here, with the interface,…and we have a cpp file here with the implementation,…and then we use it here from this template-class.cpp.…
Now, the problem with this is that, well, it doesn't work.…When I tried to build, you'll notice that build fails.…And the error I get here is linker command failed,…with exit code one, and there's actually a very…reasonable explanation for this.…So we have the stack interface to find,…or the class interface to find in this file, stack.h.…And so the compiler processes the header file,…and it generates specializations for the template class.…
And then, the compiler processes the cpp file,…
Author
Released
12/20/2018- Template fundamentals
- STL containers
- Accessing iterators
- Output, forward, and bidirectional iterators
- The transform function
- Transforming strings and types
- Arithmetic, relational, and logical functions
- STL algorithms
Skill Level Intermediate
Duration
Views
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Introduction
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1. Templates
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What is a template?4m 43s
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Template syntax1m 48s
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Template specialization1m 49s
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Template variables4m 14s
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Impact on header files3m 13s
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Type inference6m 45s
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Argument deduction3m 15s
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2. STL Containers
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3. STL Iterators
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Accessing iterators2m 28s
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Input iterators2m 2s
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Output iterators1m 27s
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Forward iterators1m 58s
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Bidirectional iterators1m 59s
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Random access iterators2m 2s
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4. Transformations
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The transform function5m 28s
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Lambda transformations4m 23s
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Transforming strings2m 49s
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Binary transformations3m 7s
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Transforming types3m 3s
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5. STL Functions
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About functors1m 46s
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Arithmetic functors2m 10s
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Relational functors3m 13s
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Logical functors1m 31s
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6. STL Algorithm
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About STL algorithms1m 42s
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Testing conditions2m 36s
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Searching and counting4m 38s
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Replacing and removing4m 14s
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Modifying algorithms5m 46s
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Partitions2m 52s
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Sorting3m 42s
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Merging sequences2m 4s
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Binary searches3m 57s
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Conclusion
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Goodbye1m 29s
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Video: Impact on header files