0x05-pointers_arrays_strings

0x05-pointers_arrays_strings

0-reset_to_98.c

• Write a function that takes a pointer to an int as parameter and updates the value it points to to 98.

Prototype: void reset_to_98(int *n);

1-swap.c

• Write a function that swaps the values of two integers.

Prototype: void swap_int(int *a, int *b);

2-strlen.c

• Write a function that returns the length of a string.

Prototype: int _strlen(char *s); FYI: The standard library provides a similar function: strlen. Run man strlen to learn more.

3-puts.c

• Write a function that prints a string, followed by a new line, to stdout.

Prototype: void _puts(char *str); FYI: The standard library provides a similar function: puts. Run man puts to learn more.

4-print_rev.c

• Write a function that prints a string, in reverse, followed by a new line.

Prototype: void print_rev(char *s);

5-rev_string.c

• Write a function that reverses a string.

Prototype: void rev_string(char *s);

6-puts2.c

• Write a function that prints every other character of a string, starting with the first character, followed by a new line.

Prototype: void puts2(char *str);

7-puts_half.c

• Write a function that prints half of a string, followed by a new line.

Prototype: void puts_half(char *str); The function should print the second half of the string If the number of characters is odd, the function should print the last n characters of the string, where n = (length_of_the_string - 1) / 2

8-print_array.c

• Write a function that prints n elements of an array of integers, followed by a new line.

Prototype: void print_array(int *a, int n); where n is the number of elements of the array to be printed Numbers must be separated by comma, followed by a space The numbers should be displayed in the same order as they are stored in the array You are allowed to use printf

9-strcpy.c

• Prototype: char *_strcpy(char *dest, char *src); Write a function that copies the string pointed to by src, including the terminating null byte (\0), to the buffer pointed to by dest.

Return value: the pointer to dest FYI: The standard library provides a similar function: strcpy. Run man strcpy to learn more.