#include <stdio.h>
main()
{
printf("az\b\b");
printf("s\ni");
}
above program when compiled with gcc gives output
sz
i
Can someone help us out to understand the output
That's because your console interprets '\b' as a backspace character.
Related
In a C program in Windows 10, I should print the word TYCHÊ on the screen, but I cannot print the letter Ê (Hex code: \xCA):
#include <stdlib.h>
#include <stdio.h>
char *Word;
int main(int argc, char* argv[]){
Word = "TYCH\xCA";
printf("%s", Word);
}
What's wrong?
Windows is a pain when it comes to printing Unicode text, but the following should work with all modern compilers (MSVC 19 or later, g++ 9 or greater) on all modern Windows systems (Windows 10 or greater), in both Windows Console and Windows Terminal:
#include <iostream>
#include <windows.h>
int main()
{
SetConsoleOutputCP( CP_UTF8 );
std::cout << "TYCHÊ" << "\n";
}
Make sure your compiler takes UTF-8 as the input character set. For MSVC 19 you need a flag. I think it is the default for later versions, but I am unsure on that point:
cl /EHsc /W4 /Ox /std:c++17 /utf-8 example.cpp
g++ -Wall -Wextra -pedantic-errors -O3 -std=c++17 example.cpp
EDIT: Dangit, I misread the language tag again. :-(
Here’s some C:
#include <stdio.h>
#include <windows.h>
int main()
{
SetConsoleOutputCP( CP_UTF8 );
printf( "%s\n", "TYCHÊ" );
return 0;
}
You can try with this line
printf("%s%c", Word, 0x2580 + 82);
this can print your Ê.
I used CLion for resolve it, on another IDE it may not give the same result.
In the Windows Command Line you should choose the Code Page 65001:
CHCP 65001
If you want to silently do that directly from the source code:
system("CHCP 65001 > NUL");
In the C source code you should use the <locale.h> standard header.
#include <locale.h>
At the beginning of your program execution you can write:
setlocale(LC_ALL, "");
The empty string "" initializes to the default encoding of the underlying system (that you previously choose to be Unicode).
However, this answer of mine is just a patch, not a solution.
It will help you to print the french characters, at most.
Handling encoding in Windows command line is not straight.
See, for example: Command Line and UTF-8 issues
I have the following code:
#include <stdio.h>
int main(){
printf("hello world");
}
The output is the following:
hello world%
Is there a way to remove the final "%" (which is actually black on white and not white on black like the other characters) of the output?
I think that is your shell prompt as #SteveSummit has said in the comment to the Question.
Ncurses have whole family of print functions for wide characters: https://linux.die.net/man/3/mvwaddnwstr
The problem with those is that it depends glibc, so if some UTF-8 character were yet not added to glibc those won't be printed properly example is: ✅
The solution I can see is to let ncurses handle displaying the character by "terminal", what I mean by that is that if we would have some sort of print function that would accept hex UTF-8 string and let terminal find correct font like below snippet do:
#include <iostream>
#include <unistd.h>
int main()
{
write(1, "\xe2\x9c\x85", 9);
}
Is is possible with nCurses?
I am having a problem with a program of mine, as I cannot see the output display. Using a Dev C++ compiler to compile my C program, I debug it to see the output. However my program immediately terminates, so I can't see the output properly.
I ended my program with return 0, and Aldo tried getch(), but even with both endings my program terminates quick.
I want to know if my program endings are wrong, and if so what is the correct way to end a program?
you need the window stop to view the output, is it right?
if yes, include this library
#include <stdlib.h>
then add this line at the end of code:
system("PAUSE");
e.g
#include <stdlib.h>
#include <stdio.h>
int main()
{
/* do/print some thing*/
system("PAUSE");
}
I am testing a C program in the windows terminal. I mocked up a quick example of the section I am having issues with. The example is as follows:
$ cat test.c
#include <stdio.h>
#include <stdlib.h>
int main() {
char var[6];
scanf("%s", var);
int i=0;
while(var[i] != '\0') {
printf("%x ", var[i]);
i++;
}
return 0;
}
When I use a string with "normal" characters such as "dd" the output is as expected "61 61" (hex 61 is the letter "d"). When I try to input special characters such as í (0xA1 or U+00ED) I get the following output:
$ ./a.exe
í
ffffffc3 ffffffad
The UTF-8 codepage at http://www.utf8-chartable.de/ shows that the backwards 'i' is in fact 0xc3ad. How can I copy and paste this character as 0xA1, as I really want to input 0xA1 into the terminal, not 0xc3ad? I am copy and pasting this from "charmap". I even tried saving a text file in ANSI with the character and copying and pasting but I still get 0xc3ad. Please assist me.
EDIT: Running the same on a mac also gives me c3ad.