http://llvm.org/bugs/show_bug.cgi?id=19979
Bug ID: 19979
Summary: raw_string_ostream doesn't set unbuffered
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Core LLVM classes
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
sorry if i got the component wrong. the bug is in Support/raw_ostream.h.
raw_string_ostream subclasses raw_ostream, but doesn't pass any value for the
"unbuffered" constructor field. the default is false (or buffered). but no
buffer is ever allocated because raw_string_ostream is a wrapper for a
std::string.
attempting to work around this bug will always end up in a codepath that tries
to delete[] the null buffer, and then sad faces all around.
the fix is simple. around line 441, this:
explicit raw_string_ostream(std::string &O) : OS(O) {}
should be this:
explicit raw_string_ostream(std::string &O) : raw_ostream(true), OS(O) {}
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