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printf(string format, items-to-format) It can take one or more arguments, where the first argument is a string to be written. This string can contain special formatting codes which are replaced by items from the remainder of the arguments. For example, an integer can be printed using the "%d" formatting code, e.g.: printf("%d", 42);
An example of the printf function. printf is a C standard library function that formats text and writes it to standard output.. The name, printf is short for print formatted where print refers to output to a printer although the functions are not limited to printer output.
The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.
XPM2 (1990) simplifies the format by removing all C code. [b] [c] The structure is simplified to ! XPM2 <Values> <Colors> <Pixels> <Optional Extensions> The value section describes the overall dimension of the image similar to the #define statements. The color section defines the values, and a new concept of the "type" of the color.
A chromogenic print, also known as a C-print or C-type print, [1] a silver halide print, [2] or a dye coupler print, [3] is a photographic print made from a color negative, transparency or digital image, and developed using a chromogenic process. [4]
z/OS DFSMS Using Data Sets -> Using Optional Control Characters; PSF for z/OS: User's Guide -> Using carriage control characters in line data records "Advanced Function Presentation - Programming Guide and Line Data Reference -> Chapter 2. Line Data and MO:DCA (AFP) Data -> Line Data" (PDF). Archived from the original (PDF) on 2016-05-29.
A malicious user may use the %s and %x format tokens, among others, to print data from the call stack or possibly other locations in memory. One may also write arbitrary data to arbitrary locations using the %n format token, which commands printf() and similar functions to write the number of bytes formatted to an address stored on the stack.
Take a 4×4 block from an image, in this case the mountain test image: [7] Like any small block from an image this appears rather boring to work with as the numbers are all quite similar, this is the nature of lossy compression and how it can work so well for images.