How can I convert an integer to an ASCII character in C ?

Convert an Integer to an ASCII Character

Conversion Methods

To convert an integer to an ASCII character, several methods are available:

1. Straightforward:

   char digits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
   char aChar = digits[i];

2. Safe:

   char aChar = '0' + i;

3. Generic:

   itoa(i, ...)

4. Handy:

   sprintf(myString, "%d", i)

5. C :

   std::ostringstream oss;
   oss << 6;

6. Humorous:

   char aChar = '6'; //int i = 6;

Random Character Conversion and File Access

To generate a random number, convert it to a character, add a ".txt" suffix, and access the file in an ifstream:

// Generate random number
srand(time(NULL));
int randomInt = rand() % 10;

// Convert to character
char randomChar = '0' + randomInt;

// Add ".txt" and open file
std::string filename = randomChar + ".txt";
std::ifstream file(filename.c_str());

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