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How do you convert an int (integer) to a string? I'm trying to make a function that converts the data of a struct into a string to save it in a file.
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sprintf() Function to Convert an Integer to a String in C As its name suggests, it prints any value into a string. This function gives an easy way to convert an integer to a string. It works the same as the printf() function, but it does not print a value directly on the console but returns a formatted string.
Solution: Use sprintf() function. You can also write your own function using ASCII values of numbers.
The atoi() function converts a character string to an integer value. The input string is a sequence of characters that can be interpreted as a numeric value of the specified return type. The function stops reading the input string at the first character that it cannot recognize as part of a number.
You can use sprintf to do it, or maybe snprintf if you have it:
char str[ENOUGH]; sprintf(str, "%d", 42); Where the number of characters (plus terminating char) in the str can be calculated using:
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