[LLVMdev] int to StringRed conversion

Logan Chien tzuhsiang.chien at gmail.com
Thu May 2 07:42:33 PDT 2013


  I think you may try to use llvm::Twine(int).  For example, to convert 30
to string, you can use:


To convert the string back to integer, you can try the
StringRef::getAsInteger(unsigned, APInt &).  For example:

APInt i;
str.getAsInteger(/*radix=*/ 10, /*output=*/ i);


On Thu, May 2, 2013 at 9:53 PM, Alexandru Ionut Diaconescu <
alexandruionutdiaconescu at gmail.com> wrote:

> Hello everyone,
> I have an integer and I want to convert it to StringRef in order to set
> metadata.
> setMetadata->(StringRef, MDNode*);
> It is there a native LLVM way to do it?
> 1. In the llvm::APSInt Class is toString() method, which seems it is not
> for this purpose
> 2. itoa and string are not part of LLVM
> 3. stringstream is not part of LLVM
> 4. to_string is not part of LLVM
> 5. any casting method?
> Also, I would like to get the metadata and convert it back to integer.
> Thank you !
> _______________________________________________
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> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
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