http://llvm.org/bugs/show_bug.cgi?id=6667
Summary: Unnecessary duplicate warnings about undeclared
identifiers
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Getting multiple warnings about the same problem bloats the error list
unnecessarily and makes it more laborious to go through all the errors in one
compile output. For example:
int main(void) {
int y;
y = x;
y = x;
return 0;
}
% clang test2.c -o test2
test2.c:4:6: error: use of undeclared identifier 'x'
y = x;
^
test2.c:5:6: error: use of undeclared identifier 'x'
y = x;
^
2 diagnostics generated.
gcc's output is nicer:
% gcc test2.c -o test2
test2.c: In function ‘main’:
test2.c:4: error: ‘x’ undeclared (first use in this function)
test2.c:4: error: (Each undeclared identifier is reported only once
test2.c:4: error: for each function it appears in.)
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