C++ getchar()

getchar() prototype

 int getchar();

The getchar() function is equivalent to a call to getc(stdin). It reads the next character from stdin which is usually the keyboard.

It is defined in <cstdio> header file.

getchar() Parameters

None.

getchar() Return value

• On success, the getchar() function returns the entered character.
• On failure, it returns EOF.
  • If the failure is caused due to end of file condition, it sets the eof indicator on stdin.
  • If the failure is caused by some other error, it sets the error indicator on stdin.

Example: How getchar() function works

 #include <iostream> #include <cstdio> using namespace std; int main() { int c,i=0; char str[100]; cout << "Enter characters, Press Enter to stop\n"; do { c = getchar(); str[i] = c; i++; } while(c!='\n'); cout << str; return 0; }

When you run the program, a possible output will be:

 Enter characters, Press Enter to stop rtq paSd12 6.2 haQ rtq paSd12 6.2 haQ

Also Read:

• C++ getc()
• C++ gets()
• C++ putchar()