colon

This question already has answers here : What does 'unsigned temp:3' in a struct or union mean? [duplicate] (4 answers) Possible Duplicate: What does ‘unsigned temp:3’ means I'm learning some kernel code, and came along the following line (in linux 2.4, sched.h, struct mm_struct): unsigned dumpable:1; What does this mean? It's a bitfield member. Your code means dumpable occupies exactly 1 bit in the structure. Bitfields are used when you want to pack members in bit-level. This can greatly reduce the size of memory used when there are a lot of flags in the structure. For example, if we define a

What is this use of the colon called? The following code is taken from the book Learn Core Audio . int main(int argc, const char * argv[]) { //... cleanup: AudioQueueDispose(queue, true); AudioFileClose(player.playbackFile); return 0; } That's a label. It's used along with a goto statement to control the flow of your program. goto and Labeled Statements (C) cleanup: is a label. It can be used as the target for a goto statement. Cleanup is a label. You can use goto cleanup; In your code to redirect your execution from cleanup label. 来源： https://stackoverflow.com/questions/28389805/what-does-the

I looked at http://api.jquery.com/trigger/ and the examples did not answer my question. I am looking at some code and would like to know what this block of code is doing. $(document).on('click', '#SubmitQuery', function(event) { event.preventDefault(); $(document).trigger('filter:submit'); }); Specifically, what does the colon inside of that trigger function do? For complete context, here is what filter is (I assume that the 'filter' inside of the trigger function refers to that filter object): var filter = { init: function() { $(document).on('keypress', '#Filter', debounce(function(event) {

I have a list of floats read in from a text file. After some data processing I write the list to a file using: for val in flist: sa = '{0}'.format(val) fout.write(sa) For specific input files, the output file will have a ':' in the string. I have run debug and stopped the script at the point of failure. The value should be 58710000.0 [Dbg]>>> print val[464] 5870:000.0 [Dbg]>>> fa = val[464] [Dbg]>>> print fa 5870:000.0 [Dbg]>>> [Dbg]>>> fa = fa + 1 [Dbg]>>> print fa 58710001.0 [Dbg]>>> fa = fa - 1 [Dbg]>>> print fa 5870:000.0 This happens only for certain files and floats Any suggestions? It's

This question already has an answer here: What does a colon in a struct declaration mean, such as :1, :7, :16, or :32? 3 answers What is the meaning of colon (:) operator in "uint isWidget : 1;" in Qt? Is "uint isWidget : 1;" equivalent to "uint isWidget(1)"? The code in Qt is QObjectData { public: virtual ~QObjectData() = 0; QObject *q_ptr; QObject *parent; QObjectList children; uint isWidget : 1; uint pendTimer : 1; uint blockSig : 1; uint wasDeleted : 1; uint ownObjectName : 1; uint sendChildEvents : 1; uint receiveChildEvents : 1; uint inEventHandler : 1; uint inThreadChangeEvent : 1; uint