overflow

问题 I'm trying to make a website with no vertical scrolling for a page, but i need that one of the DIVs i have to expand vertically to the bottom of the page (at most), and that when it has content that does not fit, the div should create a vertical scroller. i already have the css for the inside of the div figured out in this fiddle, creating the scroller when needed. i also have figured out how to make the container div grow to occupy exactly the vertical space it has in the page. i just can't

问题 Is there a standard way to see how much stack space your app has and what the highest watermark for stack usage is during a run? Also in the dreaded case of actual overflow what happens? Does it crash, trigger an exception or signal? Is there a standard or is it different on all systems and compilers? I'm looking specifically for Windows, Linux and Macintosh. 回答1: On Windows a stack overflow exception will be generated. The following windows code illustrates this: #include <stdio.h> #include

问题 I want the iterator variable in a for loop to reverse iterate to 0 as an unsigned int , and I cannot think of a similar comparison to i > -1 , as you would do if it was a signed int . for (unsigned int i = 10; i <= 10; --i) { ... } But this seems very unclear, as it is relying on the numerical overflow of the unsigned integer to be above 10. Maybe I just don't have a clear head, but whats a better way to do this... Disclaimer: this is just a simple use case, the upper limit of 10 is trivial,

问题 To setup an off-canvas menu I have to set the body to "overflow:hidden" to remove scrolling from the body and add it back in to a container around the content with "overflow-y:scroll". When I do this it seems to slow the scrolling on mobile specifically iOS devices. Is there some sort of performance issue with moving the scrollbar from the body? 回答1: Rather than a performance issue this is likely that your not seeing 'Momentum' scrolling on your iOS device This can be solved by adding '

问题 I wonder if you could explain the Overflow in floating-point types. float.MaxValue == float.MaxValue + 1 // returns true 回答1: Because the 1 is way too small to make a dent in the float.MaxValue value. Anything less than 1e32 will fall below the precision of the float, so it's in effect the same as adding a zero. Edit: ulrichb showed that a value of 1e23 does actually affect float.MaxValue, which has to mean that you are not comparing floats at all, but doubles. The compiler converts all

问题 The problem is: I have a full width bar menu, which is made by creating a big margin on the right and to the left. This margin should be cropped by overflow-x: hidden , and it is... no scroll bars, everything (visually) is ok... But, if you drag the page (using Mac Lion) or scroll to the right, the page shows an enormous bar, which should have been cropped by the overflow-x:hidden . CSS html { margin:0; padding:0; overflow-x:hidden; } body { margin: 0 auto; width: 950px; } .full, .f_right {

问题 When doing this: int x = 100; int result = 1; for (int i = 1; i < (x + 1); i++) { result = (result * i); } System.out.println(result); This is clearly because the result is too big for an integer, but I am used to get big negative numbers for the overflow, and not 0. Thanks in advance! When I switch to this: int x = 100; int result = 1; for (int i = 1; i < (x + 1); i++) { result = (result * i); System.out.println(result); } I get this. 回答1: Big negative numbers are values that overflowed into

问题 Android action bar compat Is it possible? On older devices (pre 3.0) the items that don't fit the action bar are only shown when the menu key is pressed, I want these items to be grouped in the actionbar's overflow menu. 回答1: The action overflow menu is only available when there is no hard menu button available on the device. I found this stated in the Framework Topics under User Interface > Action Bar, check out the 3rd bullet here. There is an action bar library written by Jake Wharton

问题 I have an element which may contain very big amounts of data, but I don't want it to ruin the page layout, so I set max-height: 100px and overflow:auto , hoping for scrollbars to appear when the content does not fit. It all works fine in Firefox and IE7, but IE8 behaves as if overflow:hidden was present instead of overflow:auto . I tried overflow:scroll , still does not help, IE8 simply truncates the content without showing scrollbars. Changing max-height declaration to height makes overflow

问题 Given this html: <body> <div id="a"></div> <div id="b"></div> </body> I want #b to fill all the remaining vertical space of its container block, I began with this: body { height: 500px; width: 500px; overflow: hidden; } #a { height: 100px; width: 100px; } #b { height: 100%; width: 100%; } So #b is 100% height, which means that it is taking the height of its parent container block, which is 500px , the problem is that the overflow: hidden; seems to not work, #b is not clipped. On the other