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[APFloat] Swap an early out check so we do not dereference str.end().

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Originally if D.firstSigDigit == str.end(), we will have already dereferenced
D.firstSigDigit in the first predicate.

llvm-svn: 185437
This commit is contained in:
Michael Gottesman 2013-07-02 15:50:05 +00:00
parent 304ef43e7d
commit a8c2154e69
1 changed files with 1 additions and 1 deletions
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2
lib/Support/APFloat.cpp
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@ -2488,7 +2488,7 @@ APFloat::convertFromDecimalString(StringRef str, roundingMode rounding_mode)
// D->firstSigDigit equals str.end(), every digit must be a zero and there can
// be at most one dot. On the other hand, if we have a zero with a non-zero
// exponent, then we know that D.firstSigDigit will be non-numeric.
if (decDigitValue(*D.firstSigDigit) >= 10U || D.firstSigDigit == str.end()) {
if (D.firstSigDigit == str.end() || decDigitValue(*D.firstSigDigit) >= 10U) {
category = fcZero;
fs = opOK;