From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/Analysis/CFNumber.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 clang/test/Analysis/CFNumber.c (limited to 'clang/test/Analysis/CFNumber.c') diff --git a/clang/test/Analysis/CFNumber.c b/clang/test/Analysis/CFNumber.c new file mode 100644 index 0000000..fbbe4d1 --- /dev/null +++ b/clang/test/Analysis/CFNumber.c @@ -0,0 +1,34 @@ +// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber,osx.cocoa.RetainCount -analyzer-store=region -analyzer-constraints=basic -verify -triple x86_64-apple-darwin9 %s +// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber,osx.cocoa.RetainCount -analyzer-store=region -analyzer-constraints=range -verify -triple x86_64-apple-darwin9 %s + +typedef signed long CFIndex; +typedef const struct __CFAllocator * CFAllocatorRef; +enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, + kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, + kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, + kCFNumberCharType = 7, kCFNumberShortType = 8, + kCFNumberIntType = 9, kCFNumberLongType = 10, + kCFNumberLongLongType = 11, kCFNumberFloatType = 12, + kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, + kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, + kCFNumberMaxType = 16 }; +typedef CFIndex CFNumberType; +typedef const struct __CFNumber * CFNumberRef; +extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); + +CFNumberRef f1(unsigned char x) { + return CFNumberCreate(0, kCFNumberSInt16Type, &x); // expected-warning{{An 8 bit integer is used to initialize a CFNumber object that represents a 16 bit integer. 8 bits of the CFNumber value will be garbage.}} +} + +__attribute__((cf_returns_retained)) CFNumberRef f2(unsigned short x) { + return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{A 16 bit integer is used to initialize a CFNumber object that represents an 8 bit integer. 8 bits of the input integer will be lost.}} +} + +// test that the attribute overrides the naming convention. +__attribute__((cf_returns_not_retained)) CFNumberRef CreateNum(unsigned char x) { + return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{leak}} +} + +CFNumberRef f3(unsigned i) { + return CFNumberCreate(0, kCFNumberLongType, &i); // expected-warning{{A 32 bit integer is used to initialize a CFNumber object that represents a 64 bit integer.}} +} -- cgit v1.2.3