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[flang] runtime: fix formatted real input regression w/ spaces
Blank input fields must be interpreted as zero, including the case of virutal space characters generated from record padding at the end of an input record. This stopped working sometime in the past few months for real input (not sure when); here's a fix. This bug was breaking FCVS test fm111. Differential Revision: https://reviews.llvm.org/D110765
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@ -137,7 +137,8 @@ static int ScanRealInput(char *buffer, int bufferSize, IoStatementState &io,
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if (ScanNumericPrefix(io, edit, next, remaining)) {
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Put('-');
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}
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if (!next) { // empty field means zero
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if (next.value_or(' ') == ' ') { // empty/blank field means zero
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remaining.reset();
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Put('0');
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return got;
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}
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