Hi,
I use DevC++ 4. When i don't include conio.c when compiling a program, getch() gets the character at the instant i press a particular key. But if i include conio.c, then getch() only works if i press enter after pressing a particular key. Why's that? How can i fix this.
THanks
-dAniEL.
I don't know about Dev, but under Borland's conio.h, getch() works with no buffering -- a character is accepted everytime you press it. Maybe Dev's getch() conio.c sets everything to line buffering -- everything is accepeted only after the carriage return/line feed character is read (from the Enter key).
I think there's no conflict in that
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But i want to get the character code at the instant the key is pressed, not after pressing enter. And this works without conio.c being included, which i can't figure out why.
Is this what you mean?
Code:#include <conio.h> #include <stdio.h> int main(void) { int letter = 0; while(letter != -1) { if(kbhit()) { letter = getch(); putc(letter, stdout); } } }
Not sure. In my conio.h, there is this line:
#ifndef _CONIO_H_
#define _CONIO_H_
/*snip*/
#define getch getchar
My conio.c has no reference to getch().
However, there is a second file: conio_mingw.h. Here is a snippet:
#ifndef _CONIO_H_
#define _CONIO_H_
/*snip*/
char* _cgets (char* szBuffer);
int _cprintf (const char* szFormat, ...);
int _cputs (const char* szString);
int _cscanf (char* szFormat, ...);
int _getch (); //<-this is unbuffered!
int _getche ();
int _kbhit ();
int _putch (int cPut);
int _ungetch (int cUnget);
#ifndef _NO_OLDNAMES
int getch (); //<-this is buffered!
int getche ();
int kbhit ();
int putch (int cPut);
int ungetch (int cUnget);
#endif /* Not _NO_OLDNAMES */
So I am assuming that when the compiler sees your using conio.c, it uses the first conio.h. Otherwise it uses conio_mingw.
But I'm just guessing there
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
hey Sebastiani thnx. I got it working now. What i did was open conio.h and delete the line
and open conio.c and delete the linesCode:#define getch getchar
Sik.Code:int getche() { int ch; ch = getch (); printf ("%c\n", ch); return ch; }
