Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. I am having trouble understanding what getchar! Why do there need to be opposites. The user may input extra spaces between the first name and last, and before the first name and after the last name. I think your using not allocated memory for the name. Learn more. Asked 1 year, 1 month ago.
Active 23 days ago.
getchar() and putchar()
Viewed times. Improve this question. Martin Brisiak 2, 11 11 gold badges 30 30 silver badges 48 48 bronze badges. Nick Nick 25 3 3 bronze badges. In any case, if it's your code then how do you not at least know what purposes its various bits are supposed to serve? It's not my code.
I am looking at someone else's answer for the same exercise in a programming textbook. The code does not fail though and works perfectly. Nick "what getchar! Show 1 more comments.
Active Oldest Votes. And at last the first letter of the first name is outputted after the full second name. So if you entered for example Nick Fisher then the output should be Fisher, N. Improve this answer. Vlad from Moscow Vlad from Moscow k 15 15 gold badges silver badges bronze badges. The original code won't work as intended if there are leading white-space characters in the line entered. LxerLx Why did you decide so? The leading white spaces are skipped.
VladfromMoscow You are right. Add a comment. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Why are video calls so tiring?
You might be misreading cultural styles. Featured on Meta.A macro call is similar to a function call. Thus, it consists of a macro name followed by a comma-separated argument list enclosed in a pair of parentheses.
If a macro does not require any arguments, the pair of parentheses must still be used. The getchar macro is used to read a single character from the standard input stream, i. A call to get char takes the following form: getchar. This macro waits until a key is pressed and then returns its value after converting to integer.Cimicifuga racemosa rhizome
The value returned can be assigned to a variable of type char. However, note that this macro actually reads the data from the input buffer which is processed by program only when the Enter key is pressed. Thus, getchar does not return a value until the user presses the Enter key.Mellanox connectx-5 ethernet mode
As a result, it is not suitable for interactive programs. We can instead use the getch and getche functions which directly read the data from the keyboard.Girona cf vs cadiz cf
The putchar macro is used to write a single character on the standard output stream i. A call to this macro takes the following form: putchar cwhere c is an integer expression representing the character being written. Although this macro expects an argument of type int, we usually pass a character to it. The argument value c is converted to unsigned char and written to the standard output stream.
The getchar macro is not suitable in interactive environments due to the use of line buffering. The C standard library does not provide any facility that is guaranteed to provide an interactive character input. Hence, most C compilers provide alternative functions for use in such interactive environments. Like the getchar function, calls to these functions take the following forms: getch and getche. The getch and getche functions wait for a key press and immediately return its value.
The only difference between these functions is that the getche function echos i. Illustrates the action of function getchar. Since reading is done character by character, this provides an opportunity to access an individual character. So, character counting is possible.
About Dinesh Thakur.All of these functions read a character from input and return an integer value. The integer is returned to accommodate a special value used to indicate failure. The value EOF is generally used for this purpose. It returns EOF on failure. An Example Application : C program to compare two files and report mismatches. So getchar is equivalent to getc stdin. But it does not use any buffer, so the entered character is immediately returned without waiting for the enter key.
It reads a single character from the keyboard and displays immediately on output screen without waiting for enter key. This article is contributed by Vankayala Karunakar. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Attention reader! Writing code in comment? Please use ide. Skip to content. Related Articles. Recommended Articles. What is the difference between single quoted and double quoted declaration of char array?
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C library function - getchar()
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putchar(), getchar() function in C
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