Sane string conversion in C++11

Sane string conversion in C++11

Chris Katko

Member #1,881

January 2002

literally_anything.toString();

Because all objects inherit from the object class and have a toString method.

Also,

to!anything_else(almost_anything);

It makes (un)serializing really easy to a file for loading/saving maps.

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Audric

Member #907

January 2001

I haven't seen it mentioned so far, but GNU's and BSD's libc include asprintf() : It's a sprintf() variant where you don't pass your own target buffer. It computes how long the string will be, performs a malloc(), fills it, and returns the address to you. It's then your responsibility to free() it when you're done with it.

Edgar Reynaldo

Major Reynaldo

May 2007

Is that just an GNU C extension? I doubt Micro$oft supports it. Otherwise I would make StringPrintF use it.

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bamccaig

Member #7,536

July 2006

The implementations would be free software. Could include the definition with CPP.

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Edgar Reynaldo

Major Reynaldo

May 2007

bamccaig said:

Looks like you can't pass a std::string to StringPrintF though.

Not currently. It might be possible with a bit of a hack, but you would have to find a non-reserved format specifier to use and be consistent with it.

There's a bit of a problem with StringPrintF though, and that is when you create a temporary string with it like so :

printf("%s\n" , StringPrintF("Hello my name is dangling pointer").c_str());