Formatspecifiers.c.save

/*@Shyed Shahriar Housaini
Copyright: @uthor*/

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <windows.h>
///#include <threads.h>
#include <conio.h>
#include <dos.h>
#include <direct.h>
#include <math.h>
#include <stdbool.h>
#include<ctype.h>


int main(void)

{

/**

https://www.google.com/search?client=opera&hs=mbc&sxsrf=ALeKk01i4Whd3cvlBusztiHVr2rdN98thw%3A1596615022635&ei=bmkqX8C2JomGyAOU8Ii4Cg&q=scanf+and+printf+of+double+and+float+in+c&oq=scanf+and+printf+of+double+and+float+in+c&gs_lcp=CgZwc3ktYWIQAzoECAAQRzoHCCMQsAIQJzoICAAQCBAHEB46CAgAEA0QBRAeOgQIIRAKUN-jAVjx8wFg-vkBaABwAXgAgAHJAogBlB2SAQgwLjE2LjMuMZgBAKABAaoBB2d3cy13aXrAAQE&sclient=psy-ab&ved=0ahUKEwjApZG6zoPrAhUJA3IKHRQ4AqcQ4dUDCAs&uact=5

https://stackoverflow.com/questions/19952200/scanf-printf-double-variable-c#:~:text=For%20variable%20argument%20functions%20like,and%20%25lf%20for%20double*%20.


https://www.tutorialspoint.com/format-specifiers-in-c

The format specifiers are used in C for input and output purposes. Using this concept the compiler can understand that what type of data is in a variable during taking input using the scanf() function and printing using printf() function. Here is a list of format specifiers.

Format Specifier	Type
%c	Character
%d	Signed integer
%e or %E	Scientific notation of floats
%f	Float values
%g or %G	Similar as %e or %E
%hi	Signed integer (short)
%hu	Unsigned Integer (short)
%i	Unsigned integer
%l or %ld or %li	Long
%lf	Double
%Lf	Long double
%lu	Unsigned int or unsigned long
%lli or %lld	Long long
%llu	Unsigned long long
%o	Octal representation
%p	Pointer
%s	String
%u	Unsigned int
%x or %X	Hexadecimal representation
%n	Prints nothing
%%	Prints % character
These are the basic format specifiers. We can add some other parts with the format specifiers. These are like below −

A minus symbol (-) sign tells left alignment

A number after % specifies the minimum field width. If string is less than the width, it will be filled with spaces

A period (.) is used to separate field width and precision

Example
 Live Demo

#include <stdio.h>
main() {
   char ch = 'B';
   printf("%c\n", ch); //printing character data
   //print decimal or integer data with d and i
   int x = 45, y = 90;
   printf("%d\n", x);
   printf("%i\n", y);
   float f = 12.67;
   printf("%f\n", f); //print float value
   printf("%e\n", f); //print in scientific notation
   int a = 67;
   printf("%o\n", a); //print in octal format
   printf("%x\n", a); //print in hex format
   char str[] = "Hello World";
   printf("%s\n", str);
   printf("%20s\n", str); //shift to the right 20 characters including the string
   printf("%-20s\n", str); //left align
   printf("%20.5s\n", str); //shift to the right 20 characters including the string, and print string up to 5 character
   printf("%-20.5s\n", str); //left align and print string up to 5 character
}
Output
B
45
90
12.670000
1.267000e+001
103
43
Hello World
Hello World
Hello World
Hello
Hello
We can use these format specifiers for the scanf() function also in the same manner. So we can take the input from scanf() like above how we have printed.

**/

   char ch = 'B';
   printf("%c\n", ch); //printing character data
   //print decimal or integer data with d and i

     printf(R"( //print decimal or integer data with d and i )");
  printf("\n\n");

   int x = 45, y = 90;
   printf("%d\n", x);
   printf("%i\n", y);

   float f = 12.676767;
   printf("%.3f\n", f); ///print float value /// Printing to only 3rd position after . decimal position;
   printf("%f\n", f); //print float value
   printf("%e\n", f); //print in scientific notation

   int a = 67;
   printf("%o\n", a); //print in octal format
   printf("%x\n", a); //print in hex format

   char str[] = "Hello World";
   printf("%s\n", str);
   printf("%20s\n", str); //shift to the right 20 characters including the string
   printf("%-20s\n", str); //left align
   printf("%20.5s\n", str); //shift to the right 20 characters including the string, and print string up to 5 character
   printf("%-20.5s\n", str); //left align and print string up to 5 character









return 0;

}