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Formatted input and output functions contain a length modifier which provides the above facilities for input/output. The j specifier in a format string indicates that the following d, i, o, u, x, X, or n conversion specifier will apply to an argument with type pointer to intmax_t or uintmax_t.
length modifiers are j for intmax_t/uintmax_t, z for size_t, and t for ptrdiff_t.
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\[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]] Section 7.19.6, "Formatted input/output functions," and Section 7.18.1.5, "Greatest-width integer types" |