d2i : convert double to integer : index : visitInsn()

Description

Pops a two-word double precision floating point number off of the operand stack, casts it into a 32-bit int, and pushes the resulting int onto the stack.

Rounding is done using IEEE 754 round-to-nearest mode. The fractional part is lost by rounding towards zero, so (int)-3.14 becomes -3.

If the original double value is NaN, the result is 0. If the value is too large to be represented as an integer, or if it is positive infinity, the result is the largest possible integer 0x7FFFFFFF. If the value is too small (i.e. a negative value of large magnitude, or negative infinity) then the result is the most negative integer 0x80000000.

See also

d2l d2f

Stack

Before	After
double-word1	integer-result
double-word2	...
...	...

Bytecode

Type	Description
u1	d2i opcode = 0x8E (142)