我正在尝试寻找一种方法来使PHP Bitwise XOR
的结果与JavaScript Bitwise XOR
的结果相匹配。我遇到了这个问题的不同问题,而所有问题都没有答案。以下是其中一些:
Javascript & PHP Xor equivalent
php bitwise XOR and js bitwise XOR producing different results
我知道PHP与32位JavaScript相比使用的是64位,但是我的问题是,是否有任何手动方法来计算相似结果?我们如何使PHP获得与JS类似的结果?
如果数字短,则结果在JS和PHP中将始终相同,但是,如果数字长,则发生此问题。示例:
var a = 234324234232;
var b = 221312312232;
console.log(a^b);
JS输出:
166587472
PHP代码:
$a = 234324234232;
$b = 221312312232;
echo $a^$b;
PHP输出:
21641423952
有时JavaScript会给出负面结果:
var a = 202338273;
var b = 523511134400;
console.log(a^b);
JS输出
-272722143
PHP代码:
$a = 202338273;
$b = 523511134400;
echo $a^$b;
PHP输出:
523713287969
答案 0 :(得分:1)
屏蔽为已签名的整数。
>>> import tensorflow as tf
>>> tf.test.is_gpu_available()
tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:859] OS X does not support NUMA - returning NUMA node zero
tensorflow/core/common_runtime/gpu/gpu_device.cc:1356] Found device 0 with properties:
name: GeForce GTX 1080 major: 6 minor: 1 memoryClockRate(GHz): 1.7335
pciBusID: 0000:46:00.0
totalMemory: 8.00GiB freeMemory: 2.32GiB
tensorflow/core/common_runtime/gpu/gpu_device.cc:1435] Adding visible gpu devices: 0
tensorflow/core/common_runtime/gpu/gpu_device.cc:923] Device interconnect StreamExecutor with strength 1 edge matrix:
tensorflow/core/common_runtime/gpu/gpu_device.cc:929] 0
tensorflow/core/common_runtime/gpu/gpu_device.cc:942] 0: N
tensorflow/core/common_runtime/gpu/gpu_device.cc:1053] Created TensorFlow device (/device:GPU:0 with 2025 MB memory) -> physical GPU (device: 0, name: GeForce GTX 1080, pci bus id: 0000:46:00.0, compute capability: 6.1)
True