%d takes integer value as signed decimal integer i.e. it takes negative values along with positive values but values should be in decimal otherwise it will print garbage value.
In C programming language, %d and %i are format specifiers as where %d specifies the type of variable as decimal and %i specifies the type as integer. In usage terms, there is no difference in printf() function output while printing a number using %d or %i but using scanf the difference occurs.
%s is for string %d is for decimal (or int) %c is for character.
The Most Commonly Used Format Specifiers in C. %d (Decimal Integer) Format Specifier. %c (Character) Format Specifier. %f (Floating Point) Format Specifier.
%d - prints the value of the int variable num in decimal number system. %o - prints the value of the int variable num in octal number system.
The %s means, "insert the first argument, a string, right here." The %d indicates that the second argument (an integer) should be placed there. There are different %-codes for different variable types, as well as options to limit the length of the variables and whatnot. Control Character.
%ld. Long Integer Format Specifier. It is used when data type is of long int which stores a long integer value from range [−2,147,483,647, +2,147,483,647]. %lld. Long Long Integer Format Specifier.
%s refers to a string data type, %f refers to a float data type, and %d refers to a double data type.
%3d can be broken down as follows: % means "Print a variable here" 3 means "use at least 3 spaces to display, padding as needed" d means "The variable will be an integer"
%d is specifier for Integer type. %f for float type data..
“print” treats the % as a special character you need to add, so it can know, that when you type “f”, the number (result) that will be printed will be a floating point type, and the “. 2” tells your “print” to print only the first 2 digits after the point.
Example: "%5d" will be "..123" after processing (periods mean blanks) - number 0 at the beginning of the first string of digits specifies inserting digits 0 instead of the blank. Example: "%05d" will be "00123" after processing.
%2d outputs a decimal (integer) number that fills at least 2 character spaces, padded with empty space.
In C programming %4d is used for formatting or aligning the output to 4 digits. (with spaces instead of underscores).
the %s is a 'format character', indicating "insert a string here". The extra parameters after the string in your two function calls are the values to fill into the format character placeholders: In the first example, %s will be replaced with the contents of the command variable.
In C, the concept was renamed as “locator value”, and referred to expressions that locate (designate) objects. The l-value is one of the following: The name of the variable of any type i.e. , an identifier of integral, floating, pointer, structure, or union type.
In this case, %d and %ld have the same behavior (read 4 bytes from variadic arguments and print them as a signed integer), while %lld will read 8 bytes. Same goes for %u and variants, with unsigned integer values. That explains the first line : the %u prints only half the bytes of end1 (so the value is ...
"%s" expects a pointer to a null-terminated string ( char* ). "%c" expects a character ( int ).
It specifies the minimum width that the output should be. If the width specified is more than the size of the output itself (the opposite of your case), then the difference between the length of your output and the width specified will be printed as spaces before your output.
The format specifier %4d is used for the third argument to indicate that the value should be printed using the %d format conversion with a minimum field width of 4 characters. If the integer is less than 4 characters wide, printf() will insert extra blanks to align the output.
%d stands for decimal and it expects an argument of type int (or some smaller signed integer type that then gets promoted). Floating-point types float and double both get passed the same way (promoted to double ) and both of them use %f .