Reading float using scanf in c
Edit: I can’t reproduce the problem. Everything works as expected when I use the following code compiled with gcc: The output of gcc –version is as follows: gcc (Debian 4.7.2-5) 4.7.2
scanf
Reading float using scanf in c
Edit: I can’t reproduce the problem. Everything works as expected when I use the following code compiled with gcc: The output of gcc –version is as follows: gcc (Debian 4.7.2-5) 4.7.2
How to read from input until newline is found using scanf()?
scanf (and cousins) have one slightly strange characteristic: white space in (most placed in) the format string matches an arbitrary amount of white space in the input. As it happens, at least in the default “C” locale, a new-line is classified as white space. This means the trailing ‘\n’ is trying to match not only … Read more
Simple C scanf does not work? [duplicate]
When reading input using scanf, the input is read after the return key is pressed but the newline generated by the return key is not consumed by scanf, which means the next time you read a char from standard input there will be a newline ready to be read. One way to avoid is to … Read more
Reading in double values with scanf in c
Use the %lf format specifier to read a double: Wikipedia has a decent reference for available format specifiers. You’ll need to use the %lf format specifier to print out the results as well:
How do you read scanf until EOF in C?
I have this but once it reaches the supposed EOF it just repeats the loop and scanf again.
How to find EOF through fscanf?
fscanf – “On success, the function returns the number of items successfully read. This count can match the expected number of readings or be less -even zero- in the case of a matching failure. In the case of an input failure before any data could be successfully read, EOF is returned.” So, instead of doing … Read more
how use EOF stdin in C
I need to input coordinates into an array until EOF is encountered, but something is wrong in my code. I used ctrl+Z, ctrl+D
Difference between fgets and fscanf?
The function fgets read until a newline (and also stores it). fscanf with the %s specifier reads until any blank space and doesn’t store it… As a side note, you’re not specifying the size of the buffer in scanf and it’s unsafe. Try:
How do you allow spaces to be entered using scanf?
People (and especially beginners) should never use scanf(“%s”) or gets() or any other functions that do not have buffer overflow protection, unless you know for certain that the input will always be of a specific format (and perhaps not even then). Remember than scanf stands for “scan formatted” and there’s precious little less formatted than user-entered data. It’s ideal if you have total control of … Read more