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simplify as daniel suggests

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82415 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-09-20 22:56:43 +00:00
parent c936fe8cb3
commit 6441e547cc
1 changed files with 9 additions and 16 deletions
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25
lib/Support/StringRef.cpp
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@ -89,23 +89,16 @@ static bool GetAsUnsignedInteger(StringRef Str, unsigned Radix,
unsigned long long &Result) {
// Autosense radix if not specified.
if (Radix == 0) {
if (Str[0] != '0') {
if (Str.startswith("0x")) {
Str = Str.substr(2);
Radix = 16;
} else if (Str.startswith("0b")) {
Str = Str.substr(2);
Radix = 2;
} else if (Str.startswith("0"))
Radix = 8;
else
Radix = 10;
} else {
if (Str.size() < 2) {
Radix = 8;
} else {
if (Str[1] == 'x') {
Str = Str.substr(2);
Radix = 16;
} else if (Str[1] == 'b') {
Str = Str.substr(2);
Radix = 2;
} else {
Radix = 8;
}
}
}
}
// Empty strings (after the radix autosense) are invalid.