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Forward an invocation of a variadic function in C

...t.h> #include <alloca.h> #include <inttypes.h> #include <string.h> /* This macros allow wrapping variadic functions. * Currently we don't care about floating point arguments and * we assume that the standard calling conventions are used. * * The wrapper function has to star...
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Print text instead of value from C enum

...in C are numbers that have convenient names inside your code. They are not strings, and the names assigned to them in the source code are not compiled into your program, and so they are not accessible at runtime. The only way to get what you want is to write a function yourself that translates the ...
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Convert hyphens to camel case (camelCase)

... Try this: var camelCased = myString.replace(/-([a-z])/g, function (g) { return g[1].toUpperCase(); }); The regular expression will match the -i in marker-image and capture only the i. This is then uppercased in the callback function and replaced. ...
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How can I limit possible inputs in a HTML5 “number” element?

...-numeric characters to be entered, because object.length would be an empty string for the number inputs, and therefore its length would be 0. Thus the maxLengthCheck function won't work. Solution: See this or this for examples. Demo - See the full version of the code here: http://jsfiddle.net/DRSD...
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C/C++ line number

...andard. During preprocessing, they are replaced respectively by a constant string holding an integer representing the current line number and by the current file name. Others preprocessor variables : __func__ : function name (this is part of C99, not all C++ compilers support it) __DATE__ : a str...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

...lo"); /* printf() returns the number of characters successfully printed by it */ } int World() { return printf("World !"); } int main() { int a = Hello() + World(); //might print Hello World! or World! Hell...
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Android ACTION_IMAGE_CAPTURE Intent

...reBug() { // list of known devices that have the bug ArrayList<String> devices = new ArrayList<String>(); devices.add("android-devphone1/dream_devphone/dream"); devices.add("generic/sdk/generic"); devices.add("vodafone/vfpioneer/sapphire"); devices.add("tmobile/k...
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How do I convert between big-endian and little-endian values in C++?

...nsigned __int64 _byteswap_uint64(unsigned __int64 value); 8 bit numbers (chars) don't need to be converted. Also these are only defined for unsigned values they work for signed integers as well. For floats and doubles it's more difficult as with plain integers as these may or not may be in the h...
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浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术

浅析为什么char类型的范围是 -128~+127在C语言中, signed char 类型的范围为-128~127,每本教科书上也这么写,但是没有哪一本书上(包括老师)也不会给你为什么是-128~127,这...在C语言中, signed char 类型的范围为-128~127,每本教科书上...
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PHP best way to MD5 multi-dimensional array?

...one performs faster than serialize, and (2) json_encode produces a smaller string and therefore less for md5 to handle. Edit: Here is evidence to support this claim: <?php //this is the array I'm using -- it's multidimensional. $array = unserialize('a:6:{i:0;a:0:{}i:1;a:3:{i:0;a:0:{}i:1;a:0:{}i...