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A format string has the same syntax for both the print functions and the scan functions: A format string consists of zero or more conversion specifications interspersed with literal text and white space. White space is a sequence...
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A format string has the same syntax for both the print functions and the scan functions: A format string consists of zero or more conversion specifications interspersed with literal text and white space. White space is a sequence of one or more characters c for which the call isspace(c) returns nonzero. (The characters defined as white space can change when you change the LC_CTYPE locale category.) For the print functions, a conversion specification is one of the print conversion specifications described below. A print function scans the format string once from beginning to end to determine what conversions to perform. Every print function accepts a varying number of arguments, either directly or under control of an argument of type va_list. Some print conversion specifications in the format string use the next argument in the list. A print function uses each successive argument no more than once. Trailing arguments can be left unused. In the description that follows: * integer conversions are the conversion specifiers that end in d, i, o, u, x, or X * floating-point conversions are the conversion specifiers that end in e, E, f, g, or G
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Highlights:
Good for format specifiers and conversion specifications used in printf() et al..
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