C’s getchar() example: #include <stdio.h> void main() { char ch; ch = getchar(); printf(“Input Char Is :%c”,ch); } Go equivalent: package main import ( “bufio” “fmt” “os” ) func main() { reader := bufio.NewReader(os.Stdin) input, _ := reader.ReadString(‘\n’) fmt.Printf(“Input Char Is : %v”, string([]byte(input)[0])) // fmt.Printf(“You entered: %v”, []byte(input)) } The last commented line just … Read more
This code can be written more clearly as: main() { int c; while (1) { c = getchar(); // Get one character from the input if (c == EOF) { break; } // Exit the loop if we receive EOF (“end of file”) putchar(c); // Put the character to the output } } The EOF … Read more
In the simple setup you are likely using, getchar works with buffered input, so you have to press enter before getchar gets anything to read. Strings are not terminated by EOF; in fact, EOF is not really a character, but a magic value that indicates the end of the file. But EOF is not part … Read more
To enter an EOF, use: ^Z (CtrlZ) in Windows ^D on Unix-like systems
#include <termios.h> #include <stdio.h> static struct termios old, current; /* Initialize new terminal i/o settings */ void initTermios(int echo) { tcgetattr(0, &old); /* grab old terminal i/o settings */ current = old; /* make new settings same as old settings */ current.c_lflag &= ~ICANON; /* disable buffered i/o */ if (echo) { current.c_lflag |= ECHO; … Read more
This depends on your OS, if you are in a UNIX like environment the ICANON flag is enabled by default, so input is buffered until the next ‘\n’ or EOF. By disabling the canonical mode you will get the characters immediately. This is also possible on other platforms, but there is no straight forward cross-platform … Read more