Why gets doesnt work after scanf?

Because scanf skips a newline character at the beginning and it will not take input until it gets a valid set of character. Try skipping a scanf input by pressing enter. You will not be able to do so.

Can we use gets instead of scanf?

The main difference between them is: scanf() reads input until it encounters whitespace, newline or End Of File(EOF) whereas gets() reads input until it encounters newline or End Of File(EOF), gets() does not stop reading input when it encounters whitespace instead it takes whitespace as a string.

Why gets () is not working in C?

It’s because gets() it’s so incredibly dangerous to use, that some C libraries have removed it completely and replaced it with a version that does nothing. Use fgets() instead.

Why gets should not be used?

You should not use gets since it has no way to stop a buffer overflow. If the user types in more data than can fit in your buffer, you will most likely end up with corruption or worse.

What are the limitations of scanf ()?

The problems with scanf are (at a minimum): using \%s to get a string from the user, which leads to the possibility that the string may be longer than your buffer, causing overflow. the possibility of a failed scan leaving your file pointer in an indeterminate location.

Does fgets read newline?

The fgets function reads characters from the stream stream up to and including a newline character and stores them in the string s , adding a null character to mark the end of the string. You must supply count characters worth of space in s , but the number of characters read is at most count – 1.

Why is gets function used?

The gets() function enables the user to enter some characters followed by the enter key. All the characters entered by the user get stored in a character array. The null character is added to the array to make it a string. The gets() allows the user to enter the space-separated strings.

What is the difference between function getch () and Getche ()?

The difference between getch and getche is that, getch is used to read a single character from the keyboard which does not display the entered value on screen and does not wait for the enter key ; getche is used to read a single character from the keyboard which displays immediately on screen without waiting for the …

What is the use of gets () function?

What is the purpose of gets () function?

What is true about the C++ gets ()?

The gets() function reads characters from stdin and stores them in str until a newline character or end of file is found. The difference between gets() and fgets() is that gets() uses stdin stream. The gets() function provides no support to prevent buffer overflow if large input string are provided.

Can I use scanf() before fgets() function?

While using the scanf () function, a very common problem is faced if it is used before an fgets () function. Because of this issue, the fgets () function does not read some part of the input as the scanf () function leaves a newline character in the buffer.

What does scanscanf return?

Scanf returns the total number of inputs successful or EoF (End of Line) if there is an error. While using the scanf () function, a very common problem is faced if it is used before an fgets () function.

What does scanf() do when it reads an integer?

When scanf () reads input from the standard input stream, it also creates a newline character in the buffer. So in the above code, after reading the integer x, the scanf () function left a newline character.

How to check for errors during scanf?

This is very unlikely, but good habit to check for error during scanf: For example in your code, loops is a local un-initialized variable, containing garbage. If scanf fails to fill the desired value, following while loop may run arbitrarily. scanf () leave the following from the end of that line in the buffer where fgets () will read it.