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C Format Specifier

356 views 23/12/202105/07/2022 admin 0 Comments Address Printing, C Format Specifier, c format specifier for double, c format specifier for float, Character format specifier, Floating-point format specifier, For Signed Integer format specifier, String printing, Unsigned Hexadecimal for integer, Unsigned Integer Format Specifier, Unsigned Octal number for integer

C Format Specifier

The C format specifier is used for input and output and It is a method to tell the compiler what type of data is in a variable during taking input using scanf() or printing using printf() these are %c, %d, %f, etc and it pointed that the type of data to be printed on standard output.

Format specifier	Description
%d or %i	%d is pointed to print the signed integer value that the variable can hold both positive and negative values.
%u	%u is used to print the unsigned integer value that the variable can hold only a positive value.
%o	%o is used to print the octal unsigned integer and it is the value that always starts with a 0 value.
%x	%x used to print the hexadecimal unsigned integer a value always starts with a 0x value. %x printed in small letters such as a, b, c, etc.
%X	%X used to print the hexadecimal unsigned integer, prints the alphabetical characters in uppercase such as A, B, C, etc.
%f	%f used for printing the decimal floating-point values.
%e/%E	%e is used for scientific notation.
%g	%g is used to print the decimal floating-point values i.e., the value after the decimal in the input will be the same as the value in the output.
%p	%p used to print the address in a hexadecimal form.
%c	%c used to print the unsigned character.
%s	%s used to print the strings.
%ld	%ld is used to print long-signed integer values.

For Signed Integer format specifier: %d, %i

Program

#include <stdio.h>

int main()

{

int x = 87, y = 66;

printf("%d\n", x);

printf("%i\n", x);

return 0;

}

#include <stdio.h> int main() { int x = 87, y = 66; printf("%d\n", x); printf("%i\n", x); return 0; }

#include <stdio.h>
int main()
{
    int x = 87, y = 66;
    printf("%d\n", x);
    printf("%i\n", x);
    return 0;
}

Output

87 87

87
87

Character format specifier: %c

Program

#include <stdio.h>

int main()

{

char ch = 'B';

printf("%c\n", ch);

return 0;

}

#include <stdio.h> int main() { char ch = 'B'; printf("%c\n", ch); return 0; }

#include <stdio.h>
int main()
{
    char ch = 'B';
    printf("%c\n", ch);
    return 0;
}

Output

Unsigned Integer Format Specifier: %u:

Program

#include<stdio.h>

int main()

{

printf("%u\n", -10);

printf("%u\n", 5);

return 0;

}

#include<stdio.h> int main() { printf("%u\n", -10); printf("%u\n", 5); return 0; }

#include<stdio.h>
int main()
{
    printf("%u\n", -10);
    printf("%u\n", 5);
    return 0;
}

Output

Output: 4294967286

Output: 4294967286 5

Output: 4294967286
        5

Floating-point format specifier: %f, %e or %E

Program

#include <stdio.h>

int main()

{

float a = 12.67;

printf("%f\n", a);

printf("%e\n", a);

return 0;

}

#include <stdio.h> int main() { float a = 12.67; printf("%f\n", a); printf("%e\n", a); return 0; }

#include <stdio.h>
int main()
{
    float a = 12.67;
    printf("%f\n", a);
    printf("%e\n", a);
    return 0;
}

Output

12.670000

1.267000e+01

12.670000 1.267000e+01

12.670000
1.267000e+01

Unsigned Octal number for integer: %o

Program

#include <stdio.h>

int main()

{

int a = 76;

printf("%o\n", a);

return 0;

}

#include <stdio.h> int main() { int a = 76; printf("%o\n", a); return 0; }

#include <stdio.h>
int main()
{
    int a = 76;
    printf("%o\n", a);
    return 0;
}

Output

114

Unsigned Hexadecimal for integer: %x, %X

Program

#include <stdio.h>

int main()

{

int a = 11;

printf("%x\n", a);

return 0;

}

#include <stdio.h> int main() { int a = 11; printf("%x\n", a); return 0; }

#include <stdio.h>
int main()
{
    int a = 11;
    printf("%x\n", a);
    return 0;
}

Output

String printing: %s

Program

#include <stdio.h>

int main()

{

char a[] = "abcd";

printf("%s\n", a);

return 0;

}

#include <stdio.h> int main() { char a[] = "abcd"; printf("%s\n", a); return 0; }

#include <stdio.h>
int main()
{
    char a[] = "abcd";
    printf("%s\n", a);
    return 0;
}

Output

abcd

abcd

Address Printing: %p

Program

#include <stdio.h>

int main()

{

int a = 10;

printf("The Memory Address of a: %p\n",(void*)&a);

return 0;

}

#include <stdio.h> int main() { int a = 10; printf("The Memory Address of a: %p\n",(void*)&a); return 0; }

#include <stdio.h>
int main()
{
    int a = 10;
    printf("The Memory Address of a: %p\n",(void*)&a);
    return 0;
}

Output

The Memory Address of a: 0x7ffc85861624

The Memory Address of a: 0x7ffc85861624

Double floating-point number: %lf

Program

#include <stdio.h>

int main()

{

double a = 0.0;

scanf("%lf", &a);//input is 45

printf("%lf\n", a);

return 0;

}

#include <stdio.h> int main() { double a = 0.0; scanf("%lf", &a);//input is 45 printf("%lf\n", a); return 0; }

#include <stdio.h>
int main()
{
    double a = 0.0;
    scanf("%lf", &a);//input is 45
    printf("%lf\n", a);
    return 0;
}

Output

45.650000

45.650000

String input : %s

Program

#include <stdio.h>

int main()

{

char str[20];

scanf("%s", str);//input is abcd

printf("%s\n", str);

return 0;

}

#include <stdio.h> int main() { char str[20]; scanf("%s", str);//input is abcd printf("%s\n", str); return 0; }

#include <stdio.h>
int main()
{
    char str[20];
    scanf("%s", str);//input is abcd
    printf("%s\n", str);
    return 0;
}

Output

abcd

abcd

C Format Specifier

For Signed Integer format specifier: %d, %i

Program

Output

Character format specifier: %c

Program

Output

Unsigned Integer Format Specifier: %u:

Program

Output

Floating-point format specifier: %f, %e or %E

Program

Output

Unsigned Octal number for integer: %o

Program

Output

Unsigned Hexadecimal for integer: %x, %X

Program

Output

String printing: %s

Program

Output

Address Printing: %p

Program

Output

Double floating-point number: %lf

Program

Output

String input : %s

Program

Output

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