File: CGColorSpace.c

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// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount -verify %s

typedef struct CGColorSpace *CGColorSpaceRef;
extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
extern CGColorSpaceRef CGColorSpaceRetain(CGColorSpaceRef space);
extern void CGColorSpaceRelease(CGColorSpaceRef space);

void f(void) {
  CGColorSpaceRef X = CGColorSpaceCreateDeviceRGB(); // expected-warning{{leak}}
  CGColorSpaceRetain(X);
}

void fb(void) {
  CGColorSpaceRef X = CGColorSpaceCreateDeviceRGB();
  CGColorSpaceRetain(X);
  CGColorSpaceRelease(X);
  CGColorSpaceRelease(X);  // no-warning
}