UNIT 3

User-Defined Types, Pointers And File Handling

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14 topics arranged for quick revision.

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Structures, unions, enumerated types, bit fields, memory alignment, pointer arithmetic, dynamic memory allocation, polynomial and matrix operations, file I/O, and error handling.

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Syllabus break-down

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Structures & Unions

Structures (struct definition, nested structures, array of structures, pointer to structures)

Study notes and concepts for Structures (struct definition, nested structures, array of structures, pointer to structures) under Structures & Unions.

Unions (union, use-cases, memory layout)

Study notes and concepts for Unions (union, use-cases, memory layout) under Structures & Unions.

Enumerated types (enum, typedef enum)

Study notes and concepts for Enumerated types (enum, typedef enum) under Structures & Unions.

Bit fields

Study notes and concepts for Bit fields under Structures & Unions.

10 MIN

Memory layout and alignment

Study notes and concepts for Memory layout and alignment under Structures & Unions.

10 MIN

Compound literals

Study notes and concepts for Compound literals under Structures & Unions.

10 MIN

Pointers & Dynamic Memory

Pointers (declaration, dereferencing, pointer arithmetic, arrays vs pointers, pointer to pointer)

Study notes and concepts for Pointers (declaration, dereferencing, pointer arithmetic, arrays vs pointers, pointer to pointer) under Pointers & Dynamic Memory.

Dynamic memory allocation (malloc, calloc, realloc, free)

Study notes and concepts for Dynamic memory allocation (malloc, calloc, realloc, free) under Pointers & Dynamic Memory.

Memory leak prevention, NULL and null pointer checks

Study notes and concepts for Memory leak prevention, NULL and null pointer checks under Pointers & Dynamic Memory.

10 MIN

Applications: Polynomials & Matrices

Representation and Arithmetic on polynomials with floating point coefficients

Study notes and concepts for Representation and Arithmetic on polynomials with floating point coefficients under Applications: Polynomials & Matrices.

10 MIN

Matrices and arithmetic operations on them (addition, subtraction and multiplication)

Study notes and concepts for Matrices and arithmetic operations on them (addition, subtraction and multiplication) under Applications: Polynomials & Matrices.

File Input/Output & Diagnostics

File I/O (opening, closing, reading, writing text and binary files, fopen, fclose, fprintf, fscanf, fread, fwrite, fgets, fputs)

Study notes and concepts for File I/O (opening, closing, reading, writing text and binary files, fopen, fclose, fprintf, fscanf, fread, fwrite, fgets, fputs) under File Input/Output & Diagnostics.

Error handling using errno

Study notes and concepts for Error handling using errno under File Input/Output & Diagnostics.

10 MIN

Command-line parameters

Study notes and concepts for Command-line parameters under File Input/Output & Diagnostics.

10 MIN