c - Why does scanf require &? - Stack Overflow
Oct 19, 2016 · I want to read a number from stdin. I don't understand why scanf requires the use of & before the name of my variable: int i; scanf("%d", &i); Why does scanf need the address …
How does the scanf function work in C? - Stack Overflow
The & in C is an operator that returns the address of the operand. Think of it this way, if you would simply give scanf the variable a without the &, it will be passed to it by-value, which means scanf will …
How to do scanf for single char in C - Stack Overflow
Nov 24, 2012 · scanf(" %c", &c); The blank in the format string tells scanf to skip leading whitespace, and the first non-whitespace character will be read with the %c conversion specifier.
c - What does the scanf function return? - Stack Overflow
10 From scanf: On success, the function returns the number of items successfully read. This count can match the expected number of readings or fewer, even zero, if a matching failure happens. In the …
C - scanf () vs gets () vs fgets () - Stack Overflow
Jul 10, 2015 · And the difference between gets/scanf and fgets is that gets(); and scanf(); only scan until the first space ' ' while fgets(); scans the whole input. (but be sure to clean the buffer afterwards so …
Read a string as an input using scanf - Stack Overflow
Jan 30, 2016 · char str[25]; And you cannot use scanf to read sentences--it stops reading at the first whitespace, so use fgets to read the sentence instead. And in your last printf, you need the %c …
How to prevent scanf causing a buffer overflow in C?
So snprintf writes some data to a string buffer, and sscanf reads from that created string. Where exactly does this replace scanf in that it reads from stdin?
scanf () leaves the newline character in the buffer
The scanf() function skips leading whitespace automatically before trying to parse conversions other than characters. The character formats (primarily %c; also scan sets %[…] — and %n) are the …
io - How can I clear an input buffer in C? - Stack Overflow
You are reading input using scanf, and it is leaving the user's newline on the input stream, and that stray newline is wrongly getting read by a later call to scanf("%c").
Is there a way to use scanf with the "if" and "else" statements?
May 22, 2013 · I have to create and call a function from main. Then I have to call scanf to read two integers and print out the bigger one. Then I have to do another scanf, but this time with doubles …