28 Localization library [localization]

28.4 Standard locale categories [locale.categories]

28.4.5 The time category [category.time]

28.4.5.3 Class template time_­put [locale.time.put]

28.4.5.3.1 Members [locale.time.put.members]

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iter_type put(iter_type s, ios_base& str, char_type fill, const tm* t, const charT* pattern, const charT* pat_end) const; iter_type put(iter_type s, ios_base& str, char_type fill, const tm* t, char format, char modifier = 0) const;
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Effects: The first form steps through the sequence from pattern to pat_­end, identifying characters that are part of a format sequence.
Each character that is not part of a format sequence is written to s immediately, and each format sequence, as it is identified, results in a call to do_­put; thus, format elements and other characters are interleaved in the output in the order in which they appear in the pattern.
Format sequences are identified by converting each character c to a char value as if by ct.narrow(c, 0), where ct is a reference to ctype<charT> obtained from str.getloc().
The first character of each sequence is equal to '%', followed by an optional modifier character mod272 and a format specifier character spec as defined for the function strftime.
If no modifier character is present, mod is zero.
For each valid format sequence identified, calls do_­put(s, str, fill, t, spec, mod).
2
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The second form calls do_­put(s, str, fill, t, format, modifier).
3
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[ Note
:
The fill argument may be used in the implementation-defined formats or by derivations.
A space character is a reasonable default for this argument.
— end note
 ]
4
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Returns: An iterator pointing immediately after the last character produced.
272)
Although the C programming language defines no modifiers, most vendors do.
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