getchar EOF
时间: 2023-10-17 10:28:38 浏览: 41
getchar() is a function in the C programming language that reads a single character from the standard input (usually the keyboard). It returns the character read as an integer value.
EOF (End of File) is a special constant defined in the `<stdio.h>` header file. It represents the end of a file or the end of the input stream. When getchar() encounters the end of file, it returns the EOF constant as an integer value.
So, if you want to use getchar() and check for the end of file condition, you can compare the value returned by getchar() with the EOF constant. For example:
```c
int ch;
while ((ch = getchar()) != EOF) {
// process the character
}
```
In this code snippet, the loop continues until getchar() encounters the end of file condition.