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## 22.3.12 Notes about FORMAT

Formatted output is performed not only by format, but by certain other functions that accept a format control the way format does. For example, error-signaling functions such as cerror accept format controls.

Note that the meaning of nil and t as destinations to format are different than those of nil and t as stream designators.

The `~^` should appear only at the beginning of a `~<` clause, because it aborts the entire clause in which it appears (as well as all following clauses).

The following X3J13 cleanup issue, not part of the specification, applies to this section:

- FORMAT-STRING-ARGUMENTS:SPECIFY

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