overflow

问题 So I have a div, with a bunch of content inside it that is wider than the div. I have set overflow-x: scroll and all is well. However I'd like to have two links on my page that allow the user to scroll the content within the div left and right (mimicking the standard scrollbar arrow functionality). Is that possible? 回答1: With jQuery the scrolling can be handled like in this example: $(function(){ var iv; var div = $('#content'); $('#left').mousedown(function(){ iv = setInterval(function(){

问题 In my javascript I use the jquery animate() function to slide tweets automatically. Code: function movefeeds() { var element = jQuery("#Feeds"); var position = element.position(); if(position.left == 2000){ element.css("left", "500px"); } element.animate({ "left": "-=500px" }, "slow"); } In every browser to code does exactly what it must do: sliding. But in Chrome it is not sliding always, it is sliding half the time. And even if it slides, left gets really bad values (ie. 584.2132312 instead

问题 Having following simple C++ code: #include <stdio.h> int main() { char c1 = 130; unsigned char c2 = 130; printf("1: %+u\n", c1); printf("2: %+u\n", c2); printf("3: %+d\n", c1); printf("4: %+d\n", c2); ... return 0; } the output is like that: 1: 4294967170 2: 130 3: -126 4: +130 Can someone please explain me the line 1 and 3 results? I'm using Linux gcc compiler with all default settings. 回答1: (This answer assumes that, on your machine, char ranges from -128 to 127, that unsigned char ranges

问题 Can anyone see why my help icon isn't showing in the action bar? I have pasted the relevant parts of my code below Thank you menu topline.xml: ` <item android:id="@+id/gohome_id" android:title="Home" trial10:showAsAction="ifRoom" /> <item android:id="@+id/helpme_id" android:title="help" android:icon="@drawable/ic_questionmark" android:orderInCategory="200" trial10:showAsAction="always" /> ` styles.xml: <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> </style> <style name=

问题 I am trying to display google map as a tooltip using qTip jquery plugin. I have number of elements on the page and need to assign overflow: hidden to all of them. Everything works great, except for the google map tooltip does not seem to work (just shows blank map with Google logo & terms of service). I need to apply the overflow hidden to all the blocks except for the tooltip block. When I take the global overflow out, the map showup without a problem. Am I using the CSS properties

问题 I can cut off the overflowed content on the right side, as follows: HTML <div>Hello World!</div> CSS div{width:50px; background: red; overflow: hidden; white-space: nowrap;} Result How can I cut it off on the left side? 回答1: Just change the direction of the text to right-to-left by direction: rtl; div { width:50px; background: red; overflow: hidden; white-space: nowrap; direction: rtl; } WORKING DEMO . I should note that by changing the direction , the exclamation mark of Hello World! will go

问题 My default Rust has integer overflow protect enabled, and will halt a program in execution on overflow. A large number of algorithms require overflow to function correctly (SHA1, SHA2, etc.) 回答1: Use the Wrapping type, or use the wrapping functions directly. These disable the overflow checks. The Wrapping type allows you to use the normal operators as usual. Also, when you compile your code in "release" mode (such as with cargo build --release ), the overflow checks are omitted to improve

问题 If a float overflow occurs on a value, I want to set it to zero, like this... m_speed += val; if ( m_speed > numeric_limits<float>::max()) { // This might not even work, since some impls will wraparound after previous line m_speed = 0.f } but once val has been added to m_speed , the overflow has already occurred (and I'm assuming that the same problem would occur if i did if (( m_speed + val ) > ..) . How can I check to make sure an overflow is going to occur, without causing an overflow? 回答1

问题 I have the following code: int ircsocket_print(char *message, ...) { char buffer[512]; int iError; va_list va; va_start(va, message); vsprintf(buffer, message, va); va_end(va); send(ircsocket_connection, buffer, strlen(buffer), 0); return 1; } And I wanted to know if this code is vulerable to buffer overflows by providing char arrays with a size > 512 to the variables list? And if so - How can I fix this? thank you. 回答1: Yes, it is vulnerable. Simply use vsnprintf instead: vsnprintf(buffer,

问题 In my case, product of two INT_MAX numbers is 296447233 , which is incorrect. long long int product = 0; product = 2137483647 * 2137483647; printf("product: %lli\n", product); What I am doing wrong, and how to correct it ?? Thanks ! 回答1: Both of your 2137483647 are of type int . So they stay that type and overflow. Make them long long s: product = 2137483647LL * 2137483647LL; or cast: product = (long long)2137483647 * 2137483647; 回答2: Try product = 2137483647LL * 2137483647LL; to ensure that