http://llvm.org/bugs/show_bug.cgi?id=12838
Bug #: 12838
Summary: Suggest "%zu" for sizeof expressions in printf calls
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
% clang -fsyntax-only -Wformat -std=c++11 test.cc
test.cc:5:12: warning: format specifies type 'unsigned int' but the argument
has type 'unsigned long' [-Wformat]
printf("%u\n", sizeof(i));
~^ ~~~~~~~~~
%lu
The standard says that the argument has type size_t, but we apparently think
it's just a long when we're checking the format string.
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