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On 15 May 2013 08:50, Jonathan Wakely wrote: > On 15 May 2013 06:57, ntysdd wrote: >> Hi, >> >> I found this in the file `include\bits\basic_string.h': >> /** >> * @brief Read a line from stream into a string. >> * @param __is Input stream. >> * @param __str Buffer to store into. >> * @return Reference to the input stream. >> * >> * Stores characters from is into @a __str until '\n' is >> * found, the end of the stream is encountered, or str.max_size() >> * is reached. If __is.width() is non-zero, that is the limit on >> * the number of characters stored into @a __str. Any previous >> * contents of @a __str are erased. If end of line was >> * encountered, it is extracted but not stored into @a __str. >> */ >> template<typename _CharT, typename _Traits, typename _Alloc> >> inline basic_istream<_CharT, _Traits>& >> getline(basic_istream<_CharT, _Traits>& __is, >> basic_string<_CharT, _Traits, _Alloc>& __str) >> { return getline(__is, __str, __is.widen('\n')); } >> >> >> But in reality I found __is.width() seemed to be completely ignored. >> For example: >> >> #include <iostream> >> #include <string> >> using namespace std; >> int main(void) >> { >> string s; >> cin.width(3); >> getline(cin, s); >> cout << s << endl; >> return 0; >> } >> >> Maybe the comment is wrong? > > Yes, it's wrong. I think the comment was copied from operator>> and > not corrected. I'll fix it, thanks for reporting it. * include/bits/basic_string.h (getline): Fix doxygen comments. Committed to trunk so far.
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