小编men*_*gen的帖子

我没有Django 1.5.4(稳定版)的错误,但是当我从官方tar.gz测试我的Django 1.6 beta 4上的应用程序时,我在启动时遇到了验证模型的错误.

models.py

from django.contrib.auth.models import AbstractUser, User

class ShopUser(AbstractUser):
    model_car = models.CharField(max_length=200)
    date_car = models.DateField()
    description = models.TextField(blank=True, db_index=True)

    manager = models.ForeignKey(User)

这是manage.py runserver控制台日志:

Validating models...

Unhandled exception in thread started by <function wrapper at 0x2d941b8>
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 93, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 97, in inner_run
    self.validate(display_num_errors=True)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 312, in validate
    raise CommandError("One or more models did not validate:\n%s" % error_text)
django.core.management.base.CommandError: One …

我正在使用C和Swift 3.0代码,使用来自Apple的vecLib和Accelerate框架作为基于C lang的项目和Swift playground中的动态库+我的代码.

并与呼叫从苹果公司的包装情况框架 SIMD指令的与像1或<4个元素计算功能vvcospif()从框架是比简单的非标准慢cos(x * PI)时功能从循环调用邻近1.000倍的例子.

我知道vvcospif()和之间的区别cos(),我应该完全vvcospif()使用x * PI.

在游乐场中的示例,您只需复制代码并运行它:

import Cocoa
import Accelerate

func cosine_interpolate(alpha: Float, a: Float, b: Float) -> Float {
    let ft: Float = alpha * 3.1415927;
    let f: Float = (1 - cos(ft)) * 0.5;

    return a + f*(b - a);
}

var start: Date = NSDate() as Date

var interp: Float;

for …