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c++ Programming Glossary: stdio.hCapturing stdout from a system() command optimally http://stackoverflow.com/questions/125828/capturing-stdout-from-a-system-command-optimally improve this question From the popen manual #include stdio.h FILE popen const char command const char type int pclose FILE..
How do I get the directory that a program is running from? http://stackoverflow.com/questions/143174/how-do-i-get-the-directory-that-a-program-is-running-from I think you could use it in this fashion. #include stdio.h defines FILENAME_MAX #ifdef WINDOWS #include direct.h #define..
http://stackoverflow.com/questions/1610030/why-can-you-return-from-a-non-void-function-without-returning-a-value-without-pr be valid An example as requested in the comments #include stdio.h int stringSize int main char cstring 5 printf the last char..
What do the following phrases mean in C++: zero-, default- and value-initialization? http://stackoverflow.com/questions/1613341/what-do-the-following-phrases-mean-in-c-zero-default-and-value-initializat while GCC 3.4.5 and Comeau follow the C 03 rules #include stdio.h #include string.h #include new struct A int m POD struct B ~B..
Why does an overridden function in the derived class hide other overloads of the base class? http://stackoverflow.com/questions/1628768/why-does-an-overridden-function-in-the-derived-class-hide-other-overloads-of-the overloads of the base class Consider the code #include stdio.h class Base public virtual void gogo int a printf Base gogo int..
What is the name of this operator: “-->”? http://stackoverflow.com/questions/1642028/what-is-the-name-of-this-operator in both Visual Studio 2008 and G 4.4. The code #include stdio.h int main int x 10 while x 0 x goes to 0 printf d x I'd assume..
How do you reverse a string in place in C or C++? http://stackoverflow.com/questions/198199/how-do-you-reverse-a-string-in-place-in-c-or-c reverse share improve this question Evil C #include stdio.h void strrev char p char q p while q q q for q p q p q p p ^.. fix the UTF 8 chars... #include bits types.h #include stdio.h #define SWP x y x^ y y^ x x^ y void strrev char p char q p while..
Get the IP address of the machine http://stackoverflow.com/questions/212528/get-the-ip-address-of-the-machine 0 . I've updated it show IPv6 addresses too. #include stdio.h #include sys types.h #include ifaddrs.h #include netinet in.h..
Size of character ('a') in C/C++ http://stackoverflow.com/questions/2172943/size-of-character-a-in-c-c the size of char is 1 byte in both C and C . In C #include stdio.h int main printf Size of char d n sizeof char return 0 In C #include.. So I just modified the above codes to these In C #include stdio.h int main char a 'a' printf Size of char d n sizeof a printf..
Can I use a binary literal in C or C++? http://stackoverflow.com/questions/2611764/can-i-use-a-binary-literal-in-c-or-c the bitset tip #include boost utility binary.hpp #include stdio.h #include stdlib.h #include bitset #include iostream #include..
How to execute a command and get output of command within C++? http://stackoverflow.com/questions/478898/how-to-execute-a-command-and-get-output-of-command-within-c this question #include string #include iostream #include stdio.h std string exec char cmd FILE pipe popen cmd r if pipe return..
http://stackoverflow.com/questions/58210/c-smtp-example socket.h #include netinet in.h #include netdb.h #include stdio.h using namespace std #define HELO HELO 192.168.1.1 r n #define..
How to determine CPU and memory consumption from inside a process? http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process used by current process #include stdlib.h #include stdio.h #include string.h int parseLine char line int i strlen line.. result CPU currently used #include stdlib.h #include stdio.h #include string.h static unsigned long long lastTotalUser lastTotalUserLow.. used by current process #include stdlib.h #include stdio.h #include string.h #include sys times.h #include sys vtimes.h..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 Source Files then add this code to main.cpp #include stdio.h #include cv.h #include highgui.h int main int argc char argv..
How to generate a stacktrace when my gcc C++ app crashes http://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes causes the segfault that triggers the handler #include stdio.h #include execinfo.h #include signal.h #include stdlib.h void..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle that'd be greatly appreciated. My attempt #include stdio.h #include stdlib.h #include math.h #include sys time.h double..
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