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Add format string type checking support for 'long double'. 

llvm-svn: 95026
This commit is contained in:
Ted Kremenek 2010-02-01 23:23:50 +00:00
parent 5b66b31774
commit 016b605266
2 changed files with 6 additions and 1 deletions
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5
clang/lib/Analysis/PrintfFormatString.cpp
View File

@ -311,8 +311,11 @@ ArgTypeResult FormatSpecifier::getArgType(ASTContext &Ctx) const {
return ArgTypeResult();
}
if (CS.isDoubleArg())
if (CS.isDoubleArg()) {
if (LM == AsLongDouble)
return Ctx.LongDoubleTy;
return Ctx.DoubleTy;
}
// FIXME: Handle other cases.
return ArgTypeResult();

2
clang/test/Sema/format-strings.c
View File

@ -167,6 +167,8 @@ void test10(int x, float f, int i, long long lli) {
// This is fine, because there is an implicit conversion to an int.
printf("%d", (unsigned char) 10); // no-warning
printf("%d", (long long) 10); // expected-warning{{conversion specifies type 'int' but the argument has type 'long long'}}
printf("%Lf\n", (long double) 1.0); // no-warning
printf("%f\n", (long double) 1.0); // expected-warning{{conversion specifies type 'double' but the argument has type 'long double'}}
}
typedef struct __aslclient *aslclient;