From primitive type to string

[S van Leent]

I want to know the algorithm used to make a string from an integer, double, etc., to a string and the other way around. Does anyone know this algorithm, I need to use this, because I'm making a garbage collected (Boehm-Weiser) string wrapper for use with TCHAR. Thanks in advance, Sjoerd van Leent LPCTSTR Dutch = TEXT("Double Dutch :-)");

[Joaquin M Lopez Munoz]

Maybe you can have a look at the source code for itoa and related files. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

[S van Leent]

Logical, but I need to have the source files to do that, as far as I know, these files are all libraries, that's kinda problem. Sjoerd van Leent LPCTSTR Dutch = TEXT("Double Dutch :-)");

[Joaquin M Lopez Munoz]

Maybe it depends on the installation, but at leat in mine the source code is under Microsoft Visual Studio/VC98/CRT/SRC Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

[S van Leent]

You're right, I can find it. I looked it somewhat and made my own code doing it. I've just finished the String to Integer algorithm.int String::ToInteger(String string) { size_t index = 0; bool leadSpace = true; bool isValue = true; bool minus = false; int value = 0; try { // first scanning if the string has non-numbers while(leadSpace) { TCHAR tcRet = string.GetCharAt(index); if (((tcRet < TEXT('0')) || (tcRet > TEXT('9')) ) && (tcRet != TEXT('-')) && (tcRet != TEXT('+'))) { index++; } else { leadSpace = false; } } // scan whether the first character is equal to '-' (45) or '+' (43) TCHAR tcRet = string.GetCharAt(index); if (tcRet == TEXT('-')) { minus = true; index++; } else if (tcRet == TEXT('+')) { index++; } // OK, now a number begins, I hope, if no number is found after the minus // or plus sign, we immediatly return 0 while (isValue) { TCHAR tcRet = string.GetCharAt(index); if (tcRet >= TEXT('0') && tcRet <= TEXT('9')) { int hold = (int)tcRet - (int)TEXT('0'); value *= 10; value += hold; index++; } else { if (minus) return -value; else return value; } } } catch (Exception ex) { throw (ex); } return 0; }
this is the code I'm using now to do it (if someone likes it, just use it) I'm now working on ToDouble, ToBoolean (easy!), ToUnsignedInteger, etc... Sjoerd van Leent LPCTSTR Dutch = TEXT("Double Dutch :-)");