C Language Basic to Advance Course > Derived Datatypes

Pointers with Functions

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h> int* larger(int*, int*); void main() { int a = 15; int b = 92; int *p; p = larger(&a, &b); printf("%d is larger",*p); } int* larger(int *x, int *y) { if(*x > *y) return x; else return y; } type (*pointer-name)(parameter);

You can use pointers to call functions and send functions to other functions as arguments. On pointers to functions, you can't do pointer arithmetic.

When giving arguments to a function, the call by pointer method converts the address of an argument into the formal parameter. The address is utilised within the function to obtain the actual parameter used in the call. Changes to the parameter have an impact on the passed argument.

Like conventional pointers, function pointers point to code. The name of the function can be used to get the address of the function in Functions Pointers. A function can also be returned from a function and supplied as an argument.

We shall not allocate or deallocate memory since it is used to execute a block of code.

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  1. Introduction to C Programming
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  3. Assignment : Introduction to C
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  1. Setting up C Environment
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  1. Basic Syntax
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  6. printf() and scanf() Functions
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  1. Introduction to User Defined Functions
    9m 28s
  2. User Defined Functions -Function Definition, Function Declaration and Function Call
    20m 55s
  3. User Defined Functions - Functions and Parameters
    19m 39s
  4. User Defined Functions- Types of Parameters
    20m 18s
  5. Scope of a Variable
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  6. Assignment : Working with User Defined Functions 1
    5m 24s
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    14m 45s

  1. Declaration & Initialization of Arrays
    17m 30s
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  3. Types of Arrays
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  4. 2D Arrays
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  5. Multidimensional Arrays
    25m 9s
  6. Introduction to Pointers
    16m 36s
  7. Pointers with Functions
    34m 18s
  8. Pointer Types: Null Pointer, Wide Pointer, Void Pointer
    24m 3s
  9. Pointer Arithmetic
    23m 28s
  10. Array of Pointers
    9m 58s
  11. Working with Strings
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  12. Introduction to Structures
    9m 47s
  13. Basic Structure Example
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  15. Union in C Programming
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  1. Typedef Function in C Programming
    10m 7s
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    2m 57s

  1. Overview of File Handling
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  1. Recursive Functions in C
    14m 53s
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    3m 5s

  1. Variable Arguments in User Defined Functioncs
    20m 2s
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    3m 14s

  1. Memory Management
    11m 34s
  2. Assignment : Memory Management
    2m 58s

  1. Command Line Arguments
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  1. Inbuilt Library Functions- Math.h Library
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    4m 31s

  1. Running and Debugging programs in C
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  1. Compilation and Execution
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  1. Advanced C Features: Macros
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    12m 28s
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  1. Printing a String
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  1. Course Summary
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