IsNullptr

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference products	√
Atlas training products	√

Checks whether the input pointer is null. If the pointer is null, true is returned and an error log is printed. Otherwise, false is returned.

static inline bool IsNullptr(const aclTensor *tensor, const char *name)

static inline bool IsNullptr(const aclTensorList *tensorList, const char *name)

static inline bool IsNullptr(const aclScalar *scalar, const char *name)

static inline bool IsNullptr(const aclIntArray *intArr, const char *name)

static inline bool IsNullptr(const aclBoolArray *boolArr, const char *name)

static inline bool IsNullptr(const aclFloatArray *floatArr, const char *name)

Parameter	Input/Output	Description
tensor	Input	Pointer to be checked. It can be of the aclTensor , aclTensorList , aclScalar , aclIntArray , aclBoolArray , or aclFloatArray type.
name	Input	Name of the checked pointer. If the checked pointer is null, the name is printed in the error log.

Bool type. true: nullptr; false: not nullptr.

None

#define OP_CHECK_NULL(param, retExpr) \
  if (IsNullptr(param, #param)) { \
    retExpr; \
  }

Parent topic: Basic Tensor Operation APIs