max

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	x
Atlas inference product AI Core	√
Atlas inference product Vector Core	x
Atlas training product	x

Compares two numbers of the same data type and returns the maximum value.

template <typename T, typename U>
__aicore__ inline T max(const T src0, const U src1)

**Table 1** Template parameters
Parameter	Description
T	Data type of the input data src0. Currently, the supported data types are bool, int8_t, uint8_t, int16_t, uint16_t, int32_t, uint32_t, float, int64_t, and uint64_t.
U	Data type of the input data src1. Currently, the supported data types are bool, int8_t, uint8_t, int16_t, uint16_t, int32_t, uint32_t, float, int64_t, and uint64_t. Reserved type. Currently, the value must be the same as that of T.

**Table 2** API parameters
Parameter	Input/Output	Description
src0	Input	Source operand. This is the input for comparison.
src1	Input	Source operand. This is the input for comparison.

The data types of the two source operands must be the same.

Maximum value of the two input data elements.

int64_t src0 = 1;
int64_t src1 = 2;
 
int64_t result = AscendC::Std::max(src0, src1); 
// result: 2

Parent topic: Algorithms