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YOUR C LEARNING PATH

A little more C.
A little more confidence.

One idea at a time, with examples you can follow and checkpoints to see what’s clicking. New here? Begin with chapter one. Know a little already? Jump right in.

Before you start

Bring basic programming experience with functions, loops, and arrays. This focused course develops explicit memory and pointer reasoning; it is not a first-programming course.

Review a foundation whenever you need it: First Python program · Decisions and loops · Small functions

Start chapter one Ready for the final?
13 open chapters. Your progress is saved as you go.

Your chapters

Choose any starting point
  1. 01

    Values and explicit computation

    Beginner

    Read a complete C11 program and trace its arithmetic.

    Start here, or skip ahead
    Open chapter: Values and explicit computation
  2. 02

    Functions and bounded loops

    Beginner

    Decompose a calculation and prove that a loop visits the intended inputs.

    Open whenever you’re ready
    Open chapter: Functions and bounded loops
  3. 03

    Integer limits and checked arithmetic

    Advanced

    Check whether an operation is representable before evaluating it.

    Open whenever you’re ready
    Open chapter: Integer limits and checked arithmetic
  4. 04

    Arrays, lengths, and terminated text

    Intermediate

    Track element bounds and distinguish a character array from a string literal.

    Open whenever you’re ready
    Open chapter: Arrays, lengths, and terminated text
  5. 05

    Text parsing and complete-consumption checks

    Advanced

    Detect malformed input instead of silently accepting a numeric prefix.

    Open whenever you’re ready
    Open chapter: Text parsing and complete-consumption checks
  6. 06

    Unsigned masks and packed flags

    Intermediate

    Manipulate selected bits without changing unrelated state.

    Open whenever you’re ready
    Open chapter: Unsigned masks and packed flags
  7. 07

    Addresses, borrowing, and lifetime

    Advanced

    Use pointers to update a caller’s object without crossing its lifetime or bounds.

    Open whenever you’re ready
    Open chapter: Addresses, borrowing, and lifetime
  8. 08

    Structs and explicit success results

    Intermediate

    Group related data and distinguish a missing result from a valid zero.

    Open whenever you’re ready
    Open chapter: Structs and explicit success results
  9. 09

    Headers, linkage, and separate compilation

    Intermediate

    Expose one consistent interface across translation units.

    Open whenever you’re ready
    Open chapter: Headers, linkage, and separate compilation
  10. 10

    Function pointers and comparator contracts

    Advanced

    Pass behavior through an exact callable interface.

    Open whenever you’re ready
    Open chapter: Function pointers and comparator contracts
  11. 11

    Streams, end-of-file, and error handling

    Intermediate

    Keep byte values distinct from stream status.

    Open whenever you’re ready
    Open chapter: Streams, end-of-file, and error handling
  12. 12

    Allocation and ownership contracts

    Advanced

    Manage an allocated object through every success and failure path.

    Open whenever you’re ready
    Open chapter: Allocation and ownership contracts
  13. 13

    Resizing allocations without losing ownership

    Advanced

    Preserve the original allocation when growth fails.

    Open whenever you’re ready
    Open chapter: Resizing allocations without losing ownership

PUT IT TOGETHER

Final assessment & certificate

30 multiple-choice questions and 2 written coding problems. Pass the knowledge section at 80% overall and at least 50% in every chapter area, complete and review the written practice, and meet the attempt-integrity checks to unlock your certificate.

The certificate records a CodeQuest foundations assessment. Written work is self-reviewed; identity and independent proficiency are not verified.

Open final assessment

Take an issuer-recorded assessment with a verifiable certificate

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