How to printf "unsigned long" in C?

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I can never understand how to print unsigned long datatype in C.

Suppose unsigned_foo is an unsigned long, then I try:

  • printf("%lu\n", unsigned_foo)
  • printf("%du\n", unsigned_foo)
  • printf("%ud\n", unsigned_foo)
  • printf("%ll\n", unsigned_foo)
  • printf("%ld\n", unsigned_foo)
  • printf("%dl\n", unsigned_foo)

And all of them print some kind of -123123123 number instead of unsigned long that I have.

%lu is the correct format for unsigned long. Sounds like there are other issues at play here, such as memory corruption or an uninitialized variable. Perhaps show us a larger picture?

How to print % using printf()?, Make the changes, then compile and run the program to make sure it works. Use the printf () function to create the same output as found in the listing Displaying Two Lines of Text. Use the full nursery rhyme: Hickory, dickory, dock, The mouse ran up the clock. The clock struck one, The mouse ran down, Hickory, dickory, dock. Don’t worry if the output doesn’t look right.

A `printf` format reference page (cheat sheet), How to print % using printf()?. Asked by Tanuj. Here is the standard prototype of printf function in C. int printf(const char *format, ); The format string is  The ellipses (…) in a prototype declaration means any number of any type of variables. The first argument to printf () is a string to be output. If this string contains format specifiers, which are characters preceded by a ‘%’, then printf () outputs the next argument in line using that format specifier as guidance.

For int %d

For long int %ld

For long long int %lld

For unsigned long long int %llu

C library function - printf(), printf formatting with Perl and Java. In this cheat sheet I'll show all the examples using Perl, but at first it might help to see one example using both  A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

Out of all the combinations you tried, %ld and %lu are the only ones which are valid printf format specifiers at all. %lu (long unsigned decimal), %lx or %lX (long hex with lowercase or uppercase letters), and %lo (long octal) are the only valid format specifiers for a variable of type unsigned long (of course you can add field width, precision, etc modifiers between the % and the l).

[PDF] Secrets of “printf”, C library function - printf() - The C library function int printf(const char *format, ) sends formatted output to stdout. A minus sign. This tells printf to left-adjust the conversion of the argument. number: An integer that specifies field width; printf will print a conversion of ARGUMENT in a field at least number characters wide. If necessary it will be padded on the left (or right, if left-adjustment is called for) to make up the field width..

int main()
    unsigned long long d;

This will be helpful . . .

printf - C++ Reference, printf is the C language function to do format- ted printing. The same function is also available in. PERL. This paper explains how printf works, and how to design​  Sr.No. Flags & Description; 1-Left-justify within the given field width; Right justification is the default (see width sub-specifier). 2 + Forces to precede the result with a plus or minus sign (+ or -) even for positive numbers. By defa

How to use printf in C, int printf ( const char * format, ); Print formatted data to stdout. Writes the C string pointed by format to the standard output (stdout). If format includes format  int printf ( const char * format, ); Print formatted data to stdout. Writes the C string pointed by format to the standard output ( stdout ). If format includes format specifiers (subsequences beginning with % ), the additional arguments following format are formatted and inserted in the resulting string replacing their respective specifiers.

Formatting with printf() in Java, These format specifiers may also contain its length, precision, and other flags. Syntax. int printf (const char* c  You'll find all three courses in the menu, above, or here . 1. Introduction. In this tutorial, we'll demonstrate different examples of formatting with the printf () method. The method is part of the class and provides String formatting similar to the printf () function in C.

C printf and scanf functions with example, In C programming language, printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen. We use  The various printf and wprintf functions take a format string and optional arguments and produce a formatted sequence of characters for output. The format string contains zero or more directives , which are either literal characters for output or encoded conversion specifications that describe how to format an argument in the output.