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| String to int [message #27588] |
Sat, 24 July 2010 23:00  |
morley
Messages: 10
Registered: January 2007
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Promising Member |
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How to I convert a upp String, assigned to say "122", to an int?
I saw a function to get individual characters from a string so I suppose I could concatenate these into a char array and use a_toi or something, but I presume there is something simpler.
Thanks!
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| Re: String to int [message #27589 is a reply to message #27588] |
Sun, 25 July 2010 01:08  |
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| morley wrote on Sat, 24 July 2010 23:00 |
How to I convert a upp String, assigned to say "122", to an int?
I saw a function to get individual characters from a string so I suppose I could concatenate these into a char array and use a_toi or something, but I presume there is something simpler.
Thanks!
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Hi morley,
Yes, there is something simpler. For string<->integer there are StrInt() and IntStr(), for double DblStr and StrDbl plus few more for other types.
Honza
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| Re: String to int [message #27597 is a reply to message #27590] |
Sun, 25 July 2010 12:20 |
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| morley wrote on Sun, 25 July 2010 07:54 |
Thanks for the help! It is interesting that the StrInt(char *) works with both c-character strings and the Upp String type.
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You're welcome 
The magic converting char* to String is one of the C++ features that make programmers life a bit easier. If there is a conversion operator defined, it is used automatically. For the String->const char * there is "operator const char *() const" defined in String (actually in String0, but that is implementation detail). For the other way, const char*->String, C++ just uses the constructor String(const char *s) to convert the type.
Honza
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