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-rw-r--r--stdlib/printf.mli48
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diff --git a/stdlib/printf.mli b/stdlib/printf.mli
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-(* Formatting printing functions *)
-
-val fprintf: out_channel -> ('a, out_channel, unit) format -> 'a
- (* [fprintf outchan format arg1 ... argN] formats the arguments
- [arg1] to [argN] according to the format string [format],
- and outputs the resulting string on the channel [outchan].
- The format is a character string which contains two types of
- objects: plain characters, which are simply copied to the
- output channel, and conversion specifications, each of which
- causes conversion and printing of one argument.
- Conversion specifications consist in the [%] character, followed
- by optional flags and field widths, followed by one conversion
- character. The conversion characters and their meanings are:
-- [d] or [i]: convert an integer argument to signed decimal
-- [u]: convert an integer argument to unsigned decimal
-- [x]: convert an integer argument to unsigned hexadecimal,
- using lowercase letters.
-- [X]: convert an integer argument to unsigned hexadecimal,
- using uppercase letters.
-- [s]: insert a string argument
-- [c]: insert a character argument
-- [f]: convert a floating-point argument to decimal notation,
- in the style [dddd.ddd]
-- [e] or [E]: convert a floating-point argument to decimal notation,
- in the style [d.ddd e+-dd] (mantissa and exponent)
-- [g] or [G]: convert a floating-point argument to decimal notation,
- in style [f] or [e], [E] (whichever is more compact)
-- [b]: convert a boolean argument to the string [true] or [false]
-- [a]: user-defined printer. Takes two arguments and apply the first
- one to [outchan] (the current output channel) and to the second
- argument. The first argument must therefore have type
- [out_channel -> 'b -> unit] and the second ['b].
- The output produced by the function is therefore inserted
- in the output of [fprintf] at the current point.
-- [t]: same as [%a], but takes only one argument (with type
- [out_channel -> unit]) and apply it to [outchan].
-- Refer to the C library [printf] function for the meaning of
- flags and field width specifiers. *)
-
-val printf: ('a, out_channel, unit) format -> 'a
- (* Same as [fprintf], but output on [std_out]. *)
-
-val eprintf: ('a, out_channel, unit) format -> 'a
- (* Same as [fprintf], but output on [std_err]. *)
-
-val sprintf: ('a, unit, string) format -> 'a
- (* Same as [printf], but return the result of formatting in a
- string. *)