From 3d42bfbbdd26ac56ccd706d4ebee984490c72ecc Mon Sep 17 00:00:00 2001 From: Jeffrey Yasskin Date: Fri, 15 Jul 2011 07:04:56 +0000 Subject: Add an APFloat::convertToInt(APSInt) function that automatically manages the memory for the result. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135259 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/APFloat.cpp | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'lib/Support/APFloat.cpp') diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp index c3169acabb..a46cc8dfa4 100644 --- a/lib/Support/APFloat.cpp +++ b/lib/Support/APFloat.cpp @@ -13,6 +13,7 @@ //===----------------------------------------------------------------------===// #include "llvm/ADT/APFloat.h" +#include "llvm/ADT/APSInt.h" #include "llvm/ADT/StringRef.h" #include "llvm/ADT/FoldingSet.h" #include "llvm/Support/ErrorHandling.h" @@ -2084,6 +2085,23 @@ APFloat::convertToInteger(integerPart *parts, unsigned int width, return fs; } +/* Same as convertToInteger(integerPart*, ...), except the result is returned in + an APSInt, whose initial bit-width and signed-ness are used to determine the + precision of the conversion. + */ +APFloat::opStatus +APFloat::convertToInteger(APSInt &result, + roundingMode rounding_mode, bool *isExact) const +{ + unsigned bitWidth = result.getBitWidth(); + SmallVector parts(result.getNumWords()); + opStatus status = convertToInteger( + parts.data(), bitWidth, result.isSigned(), rounding_mode, isExact); + // Keeps the original signed-ness. + result = APInt(bitWidth, parts.size(), parts.data()); + return status; +} + /* Convert an unsigned integer SRC to a floating point number, rounding according to ROUNDING_MODE. The sign of the floating point number is not modified. */ -- cgit v1.2.3-70-g09d2