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c++ Programming Glossary: x2Why are preprocessor macros evil and what are the alternatives? http://stackoverflow.com/questions/14041453/why-are-preprocessor-macros-evil-and-what-are-the-alternatives The famous one is #define SQUARE x x x and the use x2 SQUARE x . That leads to x2 x x which even if it was valid code.. SQUARE x x x and the use x2 SQUARE x . That leads to x2 x x which even if it was valid code 1 would almost certainly..
What is the difference between (type)value and type(value)? http://stackoverflow.com/questions/1652396/what-is-the-difference-between-typevalue-and-typevalue declared constructor 8.5 12.1 and the expression T x1 x2 ... is equivalent in effect to the declaration T t x1 x2 ..... x2 ... is equivalent in effect to the declaration T t x1 x2 ... for some invented temporary variable t with the result being..
Can a recursive function be inline? http://stackoverflow.com/questions/190232/can-a-recursive-function-be-inline n factorial n 1 int f int x if x 1 return 1 else int x2 x 1 if x2 1 return x 1 else int x3 x2 1 if x3 1 return.. n 1 int f int x if x 1 return 1 else int x2 x 1 if x2 1 return x 1 else int x3 x2 1 if x3 1 return x x2 1 else.. 1 else int x2 x 1 if x2 1 return x 1 else int x3 x2 1 if x3 1 return x x2 1 else return x x2 x3 factorial x3..
http://stackoverflow.com/questions/2901694/programatically-detect-number-of-physical-processors-cores-or-if-hyper-threading 4 hyper threads false Intel R Xeon R CPU E5520 @ 2.27GHz w x2 physical CPU packages logical cpus 16 cpu cores 8 hyper threads..
boost spirit semantic action parameters http://stackoverflow.com/questions/3066701/boost-spirit-semantic-action-parameters part of our input is a sequence of three CSV integers x1 x2 x3 and we only care out an arithmetic function of these three.. out an arithmetic function of these three integers f x0 x1 x2 x3 where x0 is a value obtained elsewhere. One option is to.. qi int_ qi _a qi _1 local x1 qi int_ qi _a qi _1 local x1 x2 qi int_ qi _val qi _a qi _1 qi _r1 output local x3 x0 int..
http://stackoverflow.com/questions/3097779/decltype-and-parenthesis A a new A decltype foo x1 i type is const int decltype i x2 type is int decltype a x x3 type is double decltype a x x4..
http://stackoverflow.com/questions/3247285/const-int-int-const 2 ints which are constant int const x1 3 const int x2 3 Declares a pointer whose data cannot be changed through the..
http://stackoverflow.com/questions/4295432/typedef-function-pointer int u int v return u v t_somefunc afunc square ... int x2 afunc 123 456 call square to calculate 123 456 share improve..
Nonstatic member as a default argument of a nonstatic member function http://stackoverflow.com/questions/4539406/nonstatic-member-as-a-default-argument-of-a-nonstatic-member-function class the default value mem belongs to X x1 100 mem 100 X x2 200 mem 200 x1.f param is 100 or 200 or something else Your..
How to get IOStream to perform better? http://stackoverflow.com/questions/5166263/how-to-get-iostream-to-perform-better to use fscanf ... and that the C ifstream is consistently x2 x3 times slower. I thought it would be great if we could compile..
Sequence-zip function for c++11? http://stackoverflow.com/questions/8511035/sequence-zip-function-for-c11 unfamiliar with Python the code Y1 1 2 3 Y2 4 5 6 7 for x1 x2 in zip Y1 Y2 print x1 x2 Gives as output 1 4 2 5 3 6 c c 11.. code Y1 1 2 3 Y2 4 5 6 7 for x1 x2 in zip Y1 Y2 print x1 x2 Gives as output 1 4 2 5 3 6 c c 11 sequences share improve..
http://stackoverflow.com/questions/13883824/make-unique-does-not-compile _MAKE_UNIQUE TEMPLATE_LIST PADDING_LIST LIST COMMA X1 X2 X3 X4 template class T COMMA LIST _CLASS_TYPE inline std unique_ptr..
Count the number of adjacent boxes http://stackoverflow.com/questions/17328004/count-the-number-of-adjacent-boxes assuming x1 x2 and y1 y2 Rect double X1 double Y1 double X2 double Y2 if X1 X2 x1 X1 x2 X2 else x2 X1 x1 X2 if Y1 Y2 y1.. y1 y2 Rect double X1 double Y1 double X2 double Y2 if X1 X2 x1 X1 x2 X2 else x2 X1 x1 X2 if Y1 Y2 y1 Y1 y2 Y2 else y2 Y1.. double X1 double Y1 double X2 double Y2 if X1 X2 x1 X1 x2 X2 else x2 X1 x1 X2 if Y1 Y2 y1 Y1 y2 Y2 else y2 Y1 y1 Y2 bool..
C++ Timer function to provide time in nano seconds http://stackoverflow.com/questions/275004/c-timer-function-to-provide-time-in-nano-seconds different issues. For example in Windows XP all AMD Athlon X2 dual core CPUs return the PC of either of the cores randomly..
template class: ctor against function -> new C++ standard http://stackoverflow.com/questions/2794369/template-class-ctor-against-function-new-c-standard ret template typename T Point 3 T Create T X0 T X1 T X2 Point 3 T ret ret.X 0 X0 ret.X 1 X1 ret.X 2 X2 return ret template.. T X0 T X1 T X2 Point 3 T ret ret.X 0 X0 ret.X 1 X1 ret.X 2 X2 return ret template typename T Point 4 T Create T X0 T X1 T.. ret template typename T Point 4 T Create T X0 T X1 T X2 T X3 Point 4 T ret ret.X 0 X0 ret.X 1 X1 ret.X 2 X2 ret.X 3..
http://stackoverflow.com/questions/305615/timers-to-measure-latency different issues. For example in Windows XP all AMD Athlon X2 dual core CPUs return the PC of either of the cores randomly..
C++ compile-time constant detection http://stackoverflow.com/questions/3299834/c-compile-time-constant-detection X1 0 const_word X1 16 #define const_switch_word X1 X2 is_const X1 const_word X1 0 X2 #define const_switch_uint X1.. const_switch_word X1 X2 is_const X1 const_word X1 0 X2 #define const_switch_uint X1 X2 is_const X1 const_uint X1 X2.. X1 const_word X1 0 X2 #define const_switch_uint X1 X2 is_const X1 const_uint X1 X2 const int X1 222 const int X2 printf..
Best way to build a list of per type data? http://stackoverflow.com/questions/401621/best-way-to-build-a-list-of-per-type-data SomeClass X1 auto_X1 static AutoRegister SomeClass X2 auto_X2 ... etc.... for each template class instantiation. For.. SomeClass X1 auto_X1 static AutoRegister SomeClass X2 auto_X2 ... etc.... for each template class instantiation. For FIW I..
Can I force cache coherency on a multicore x86 CPU? http://stackoverflow.com/questions/558848/can-i-force-cache-coherency-on-a-multicore-x86-cpu communication . Everything worked fine on my Athlon 64 X2 but I was wondering if I'd run into any problems if both threads..
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