clang/test/Analysis/Inputs/system-header-simulator-for-malloc.h

   1 // Like the compiler, the static analyzer treats some functions differently if
   2 // they come from a system header -- for example, it is assumed that system
   3 // functions do not arbitrarily free() their parameters, and that some bugs
   4 // found in system headers cannot be fixed by the user and should be
   5 // suppressed.
   6 #pragma clang system_header
   7
   8 typedef __typeof(sizeof(int)) size_t;
   9 void *malloc(size_t);
  10 void *calloc(size_t, size_t);
  11 void free(void *);
  12 void *alloca(size_t);
  13
  14
  15 #if __OBJC__
  16
  17 #import "system-header-simulator-objc.h"
  18
  19 @interface Wrapper : NSData
  20 - (id)initWithBytesNoCopy:(void *)bytes length:(NSUInteger)len;
  21 @end
  22
  23 @implementation Wrapper
  24 - (id)initWithBytesNoCopy:(void *)bytes length:(NSUInteger)len {
  25   return [self initWithBytesNoCopy:bytes length:len freeWhenDone:1]; // no-warning
  26 }
  27 @end
  28
  29 @interface CustomData : NSData
  30 + (id)somethingNoCopy:(char *)bytes;
  31 + (id)somethingNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)freeBuffer;
  32 + (id)something:(char *)bytes freeWhenDone:(BOOL)freeBuffer;
  33 @end
  34
  35 #endif