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Cleqnup ideas from Chris, thanks. 

llvm-svn: 72621
This commit is contained in:
Mike Stump 2009-05-30 14:43:18 +00:00
parent 24ad1feb77
commit b807c9c622
1 changed files with 6 additions and 5 deletions
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11
clang/lib/AST/ExprConstant.cpp
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@ -17,6 +17,7 @@
#include "clang/AST/StmtVisitor.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/Compiler.h"
#include <cstring>
@ -1320,13 +1321,13 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr *E) {
if (!S->isWide()) {
const llvm::fltSemantics &Sem =
Info.Ctx.getFloatTypeSemantics(E->getType());
char *s = (char *)malloc (S->getByteLength()+1);
memcpy(s, S->getStrData(), S->getByteLength());
s[S->getByteLength()] = 0;
llvm::SmallString<16> s;
s.append(S->getStrData(), S->getStrData() + S->getByteLength());
s += '\0';
long l;
char *endp;
l = strtol(S->getStrData(), &endp, 0);
if (endp != (S->getStrData() + S->getByteLength()))
l = strtol(&s[0], &endp, 0);
if (endp != s.end()-1)
return false;
unsigned type = (unsigned int)l;;
Result = llvm::APFloat::getNaN(Sem, false, type);