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1What is a low-level language?
2The origins at Bell Labs
3C's role in Operating Systems
4Standards: ANSI C vs C99 vs C11
5Why C remains relevant today
6C as a compiled language
7The trade-off: Power vs Safety
8Hardware abstraction in C
9Role of the Compiler
10Installing GCC on Linux/macOS
11Setting up MinGW on Windows
12Introduction to the CLI
13Using a Text Editor vs IDE
14Verifying your installation
15The concept of a Source File
16Naming conventions for .c files
17The 'Hello World' code
18The `#include` directive
19What is a Header File?
20The `main()` function entry point
21Curly braces `{}` and blocks
22Semicolons as statement terminators
23Case sensitivity in C
24The `return 0;` statement
25Phase 1: The Preprocessor
26Phase 2: Compilation to Assembly
27Phase 3: Assembly to Object Code
28Phase 4: The Linker
29Understanding `.o` and `.obj` files
30Creating an executable binary
31How the OS runs a program
32Executing from the command line
33Single-line comments `//`
34Multi-line comments `/* */`
35Documenting intent vs mechanics
36Whitespace and indentation
37Readability best practices
38Commenting out code for testing
39Nested comment pitfalls
40C coding style guides
41The `stdio.h` library
42Basic `printf` syntax
43Printing literal strings
44Newline character `\n`
45Horizontal tab `\t`
46Escaping double quotes
47Escaping the backslash
48The percent sign `%%` literal
49Introduction to Format Specifiers
50Printing integers with `%d`
51Printing characters with `%c`
52Printing decimals with `%f`
53The `%s` specifier for strings
54Multiple specifiers in one line
55Argument-specifier matching
56Basic field width formatting
57Basic `gcc` command flags
58Naming the output with `-o`
59Compiling multiple source files
60Understanding the `a.out` default
61Introduction to `make` and Makefiles
62Automating the build process
63Header search paths
64Library linking basics
65Syntax errors vs Logic errors
66Reading compiler error messages
67Line number tracking
68Warnings vs Fatal errors
69Enabling all warnings with `-Wall`
70The 'undefined reference' linker error
71Common beginner typos
72Debugging by printing

1What is a low-level language?
2The origins at Bell Labs
3C's role in Operating Systems
4Standards: ANSI C vs C99 vs C11
5Why C remains relevant today
6C as a compiled language
7The trade-off: Power vs Safety
8Hardware abstraction in C
9Role of the Compiler
10Installing GCC on Linux/macOS
11Setting up MinGW on Windows
12Introduction to the CLI
13Using a Text Editor vs IDE
14Verifying your installation
15The concept of a Source File
16Naming conventions for .c files
17The 'Hello World' code
18The `#include` directive
19What is a Header File?
20The `main()` function entry point
21Curly braces `{}` and blocks
22Semicolons as statement terminators
23Case sensitivity in C
24The `return 0;` statement
25Phase 1: The Preprocessor
26Phase 2: Compilation to Assembly
27Phase 3: Assembly to Object Code
28Phase 4: The Linker
29Understanding `.o` and `.obj` files
30Creating an executable binary
31How the OS runs a program
32Executing from the command line
33Single-line comments `//`
34Multi-line comments `/* */`
35Documenting intent vs mechanics
36Whitespace and indentation
37Readability best practices
38Commenting out code for testing
39Nested comment pitfalls
40C coding style guides
41The `stdio.h` library
42Basic `printf` syntax
43Printing literal strings
44Newline character `\n`
45Horizontal tab `\t`
46Escaping double quotes
47Escaping the backslash
48The percent sign `%%` literal
49Introduction to Format Specifiers
50Printing integers with `%d`
51Printing characters with `%c`
52Printing decimals with `%f`
53The `%s` specifier for strings
54Multiple specifiers in one line
55Argument-specifier matching
56Basic field width formatting
57Basic `gcc` command flags
58Naming the output with `-o`
59Compiling multiple source files
60Understanding the `a.out` default
61Introduction to `make` and Makefiles
62Automating the build process
63Header search paths
64Library linking basics
65Syntax errors vs Logic errors
66Reading compiler error messages
67Line number tracking
68Warnings vs Fatal errors
69Enabling all warnings with `-Wall`
70The 'undefined reference' linker error
71Common beginner typos
72Debugging by printing

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Lesson 70 of 1,219·1. FoundationsPro lesson

The 'undefined reference' linker error

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