#include <unistd.h>
void ft_putchar(char c) {
write(1, &c, 1);
}
void ft_sort_int_tab(int *tab, int size) {
int storage;
int i = 0;
while (i < size - 1) {
if (tab[i] > tab[i + 1]) {
storage = tab[i];
tab[i] = tab[i + 1];
tab[i + 1] = storage;
i = 0;
} else {
i++;
}
}
}
int main(void) {
int tab[5] = {7, 5, 8, 6, 2};
int size = 5;
ft_sort_int_tab(tab, size);
int i = 0;
while (i < size) {
ft_putchar(tab[i] + '0');
i++;
}
return 0;
}
This code sorts the integers in ascending order and then prints them one by one, producing the output "-125678".
User
i want to add a function that calculates the size of the array without having to assign a value to int size
ChatGPT
Understood. If you want to calculate the size of the array without having to assign a value explicitly, you can achieve this by using a sentinel value in the array and a dedicated function that counts the number of elements until it reaches the sentinel value. Here's how you can do it:
c
Copy code
#include <unistd.h>
void ft_putchar(char c) {
write(1, &c, 1);
}
int ft_array_size(int *arr, int sentinel) {
int size = 0;
while (arr[size] != sentinel) {
size++;
}
return size;
}
void ft_sort_int_tab(int *tab, int size) {
int storage;
int i = 0;
while (i < size - 1) {
if (tab[i] > tab[i + 1]) {
storage = tab[i];
tab[i] = tab[i + 1];
tab[i + 1] = storage;
i = 0;
} else {
i++;
}
}
}
int main(void) {
int tab[6] = {7, 5, 8, 6, 2, -1}; // Assuming -1 marks the end of the array
int size = ft_array_size(tab, -1);
ft_sort_int_tab(tab, size);
int i = 0;
while (i < size) {
ft_putchar(tab[i] + '0');
i++;
}
return 0;
}
In this example, I've used -1 as the sentinel value to mark the end of the array. The ft_array_size function calculates the size of the array until it encounters the sentinel value. This way, you don't need to assign the size manually. The code will sort and print the integers as you've described.
User
an I want the array to be int tab[5]={7,5,8,6,2};
ChatGPT
I apologize for the misunderstanding. If you want to calculate the size of the array automatically without having to assign it manually, you can utilize a macro to calculate the size. Here's how you can do it:
c
Copy code
#include <unistd.h>
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
void ft_putchar(char c) {
write(1, &c, 1);
}
void ft_sort_int_tab(int *tab, int size) {
int storage;
int i = 0;
while (i < size - 1) {
if (tab[i] > tab[i + 1]) {
storage = tab[i];
tab[i] = tab[i + 1];
tab[i + 1] = storage;
i = 0;
} else {
i++;
}
}
}
int main(void) {
int tab[5] = {7, 5, 8, 6, 2};
int size = 5;
ft_sort_int_tab(tab, size);
int i = 0;
while (i < size) {
ft_putchar(tab[i] + '0');
i++;
}
return (0);
}
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#include <stdio.h>
int main()
{
char name[50];
printf("Enter name:");
scanf("%s", name);
printf("Hello %s \n" , name );
return 0;
}
C language is one of the most popular general-purpose programming language developed by Dennis Ritchie at Bell laboratories for UNIX operating system. The initial release of C Language was in the year 1972. Most of the desktop operating systems are written in C Language.
When ever you want to perform a set of operations based on a condition if-else is used.
if(conditional-expression) {
// code
} else {
// code
}
You can also use if-else for nested Ifs and if-else-if ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to if-else-if ladder.
switch(conditional-expression) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
// code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
// code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.
data-type array-name[size];
data-type array-name[size][size];
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity.
Two types of functions are present in C
Library functions are the in-built functions which are declared in header files like printf(),scanf(),puts(),gets() etc.,
User defined functions are the ones which are written by the programmer based on the requirement.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
//code
}