- #1
j-lee00
- 95
- 0
In C how would i create, open and write an array to a text file
The array is EeV,
does it make a difference if I am using ubuntu or windows
The array is EeV,
does it make a difference if I am using ubuntu or windows
In C, arrays are declared by specifying the data type of the elements in the array, followed by the name of the array and the number of elements in square brackets. For example, to declare an array of integers with 10 elements, you would write int myArray[10];
To write an array to a file in C, you will need to use the fwrite() function. This function takes four arguments: a pointer to the array, the size of each element in bytes, the number of elements to be written, and a pointer to the file to write to. For example, to write the entire array to a file called output.txt, you could use the following code: fwrite(myArray, sizeof(int), 10, output.txt);
To read an array from a file in C, you will need to use the fread() function. This function takes four arguments: a pointer to the array where the data will be stored, the size of each element in bytes, the number of elements to be read, and a pointer to the file to read from. For example, to read 10 integers from a file called input.txt into an array, you could use the following code: fread(myArray, sizeof(int), 10, input.txt);
To write a specific element of an array to a file in C, you will need to use the fwrite() function and specify the index of the element you want to write. For example, to write the third element of the array to a file, you could use the following code: fwrite(&myArray[2], sizeof(int), 1, output.txt); Note that arrays in C are zero-indexed, so the third element would be at index 2.
To read a specific element of an array from a file in C, you will need to use the fread() function and specify the index of the element you want to read. For example, to read the fifth element of an array from a file, you could use the following code: fread(&myArray[4], sizeof(int), 1, input.txt); Note that arrays in C are zero-indexed, so the fifth element would be at index 4.