Converting std strings (newbie question)

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Michael P

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Joined: 6th Mar 2006

Location: London (UK)

Posted: 22nd Apr 2008 19:14 Edited at: 22nd Apr 2008 19:14

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I'm trying to convert standard strings from string to int, unsigned int and float. How is this done?

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Zotoaster

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Joined: 20th Dec 2004

Location: Scotland

Posted: 22nd Apr 2008 19:24

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First turn these strings into char* by doing (char*)mystring.c_str(), then use atoi() to convert to int, and atof() to convert to double. If you really want float then do (float)atof()

Don't you just hate that Zotoaster guy?

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Michael P

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Location: London (UK)

Posted: 22nd Apr 2008 19:32

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Thanks, a related question:
How do I add an integer/unsigned int/float onto the end of a standard string? I tried 'sBuffer += iInt;' but nothing visible gets added (sBuffer is a std string).

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Diggsey

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Joined: 24th Apr 2006

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Posted: 22nd Apr 2008 19:59

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'a' means (char*)
'i' means (int)
'f' means (double)
'l' means (long)

To convert from one to another, use <letter>to<letter>

Above, to convert a string to an integer, it was 'atoi' or:
'a' to 'i'

To convert back just use 'itoa' or 'ftoa' for floats and doubles.

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jason p sage

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Location: Ellington, CT USA

Posted: 23rd Apr 2008 14:32

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char buf[1024];
sprintf(buf,"My Age: %i",iAge);
dbPrint(buf);

http://www.jasonpetersage.com/?PAGE=ironinfantry&SECTION=ironinfantry

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