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200.sixtrack prints FP numbers with a very strange notation that uses D

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instead of E for exponentials (e.g. 1.234D-43).  Add support for this
notation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22574 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-02 00:11:53 +00:00
parent e96e376833
commit 8dcd5483bc
1 changed files with 21 additions and 3 deletions
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24
lib/Support/FileUtilities.cpp
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@ -26,6 +26,8 @@ static bool isNumberChar(char C) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
case '.': case '+': case '-':
case 'D': // Strange exponential notation.
case 'd': // Strange exponential notation.
case 'e':
case 'E': return true;
default: return false;
@ -56,10 +58,26 @@ static bool CompareNumbers(char *&F1P, char *&F2P, char *F1End, char *F2End,
while (isspace(*F2P) && F2P != F2End)
++F2P;
// If we stop on numbers, compare their difference.
// If we stop on numbers, compare their difference. Note that some ugliness
// is built into this to permit support for numbers that use "D" or "d" as
// their exponential marker, e.g. "1.234D45". This occurs in 200.sixtrack in
// spec2k.
if (isNumberChar(*F1P) && isNumberChar(*F2P)) {
V1 = strtod(F1P, &F1NumEnd);
V2 = strtod(F2P, &F2NumEnd);
bool isDNotation;
do {
isDNotation = false;
V1 = strtod(F1P, &F1NumEnd);
V2 = strtod(F2P, &F2NumEnd);
if (*F1NumEnd == 'D' || *F1NumEnd == 'd') {
*F1NumEnd = 'e'; // Strange exponential notation!
isDNotation = true;
}
if (*F2NumEnd == 'D' || *F2NumEnd == 'd') {
*F2NumEnd = 'e'; // Strange exponential notation!
isDNotation = true;
}
} while (isDNotation);
} else {
// Otherwise, the diff failed.
F1NumEnd = F1P;