Can we use scanf and gets together?

Try: scanf(“\%d\n”, &a); gets only reads the ‘\n’ that scanf leaves in. Also, you should use fgets not gets: http://www.cplusplus.com/reference/clibrary/cstdio/fgets/ to avoid possible buffer overflows.

Can gets replace scanf?

(C) gets() can always replace scanf() without any additional code. Explanation: gets() can read a string with spaces but a normal scanf() with \%s can not.

Why is scanf not taking input in C?

You may’ve used the scanf inside a while loop or for loop or do while loop or if else statement or switch case statement or in a remote user defined function that doesn’t satisfy the condition to enter into it. In that case that block will be skipped and scanf will not work.

Why fgets is not working in c?

The scanf() function usually leaves a \n character behind in the input stream, while fgets() usually does not, meaning that the next call to an I/O function may or may not need to cope with what the previous call has left in the input stream. A better solution is to use one style of I/O function for all user input.

Does scanf stop at newline?

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.

Does scanf stop at Newline?

What can I use besides scanf?

To convert the input, there are a variety of functions that you can use: strtoll , to convert a string into an integer. strtof / d / ld , to convert a string into a floating-point number. sscanf , which is not as bad as simply using scanf , although it does have most of the downfalls mentioned below.

Does scanf wait for input?

The scanf() function takes input from the standard input (keyboard) and store the value in a variable. The function waits for the user input until the user press the enter key.

What is the difference between fgets and scanf?

fgets() can read from any open file, but scanf() only reads standard input. fgets() reads ‘a line of text’ from a file; scanf() can be used for that but also handles conversions from string to built in numeric types.

What happens if scanf doesn’t use a pointer?

The conversion that follows occurs as usual, but no pointer is used; the result of the conversion is simply discarded. 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.

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.

How to get the second part of a string from scanf?

If you take your original code and enter “name message”, two pieces all on one line, you can see this in action – gets will still immediately return, but it will see the second part. The in the scanf thing tells it to go ahead and consume that too. Thanks for contributing an answer to Stack Overflow!

Why can’t I use gets() in C programming?

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. Reads characters from the standard input (stdin) and stores them as a C string into str until a newline character or the end-of-file is reached.