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printf
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The printf function formats and prints characters and values to
the standard output stream, stdout. The <format> string consists
of ordinary characters, escape sequences, and format
specifications. Ordinary characters and escape sequences are
copied to stdout in the order of their appearance.
See: ◄Format Specifiers►
◄Escape Sequences►
The format is scanned from left to right. If a format
specification is encountered, the value of the corresponding
argument is converted and output according to that format
specification. If there are more arguments than format
specifications, the extra arguments are ignored. If there are more
format specifications than arguments, the results are undefined.
Return Value
The printf function returns the number of characters printed, or a
negative value in the case of an output error.
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