c++ fomat specifier related question

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sprintf(dataStr, "%.2lX", (int) m_configObj->m_EncoderList[j].m_video.Contrast);

I want to know about %.2lx in this program.

Posted 14-Sep-11 18:53pm

razzzz87

Updated 15-Sep-11 3:54am

Malli_S

v2

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AditSheth · Accepted Answer · 2011-09-14T19:23:00

Solution 1

See this Link : http://www.cplusplus.com/reference/clibrary/cstdio/sprintf/

Format for sprintf

%[flags][width][.precision][length]specifier

now
%.2lx - % -> as format before flags
-> .2 - precision : specifies the minimum number of digits to be written.
-> l - Length : long int or unsigned long int
-> x - specifier : Unsigned hexadecimal integer

Posted 14-Sep-11 19:23pm

AditSheth

Updated 14-Sep-11 19:53pm

v2

Comments

Sergey Chepurin 15-Sep-11 4:36am

lx, lX -A long unsigned hexadecimal integer in lowercase or uppercase.