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c++ Programming Glossary: sysconf

Programmatically find the number of cores on a machine

http://stackoverflow.com/questions/150355/programmatically-find-the-number-of-cores-on-a-machine

OS releases 10.4 i.e. Tiger onwards per comments numCPU sysconf _SC_NPROCESSORS_ONLN FreeBSD MacOS X NetBSD OpenBSD etc. int.. 1 HPUX numCPU mpctl MPC_GETNUMSPUS NULL NULL IRIX numCPU sysconf _SC_NPROC_ONLN Mac OS X 10.5 and newer or iOS any version using..

How to get available memory C++/g++?

http://stackoverflow.com/questions/2513505/how-to-get-available-memory-c-g

this question On UNIX like operating systems there is sysconf . #include unistd.h size_t getTotalSystemMemory long pages sysconf.. . #include unistd.h size_t getTotalSystemMemory long pages sysconf _SC_PHYS_PAGES long page_size sysconf _SC_PAGE_SIZE return pages.. long pages sysconf _SC_PHYS_PAGES long page_size sysconf _SC_PAGE_SIZE return pages page_size On Windows there is GlobalMemoryStatusEx..

why doesn't my program crash when I write past the end of an array?

http://stackoverflow.com/questions/6452959/why-doesnt-my-program-crash-when-i-write-past-the-end-of-an-array

ways on UNIX Linux one way is to use the system function sysconf like this #include stdio.h #include unistd.h sysconf 3 int main.. sysconf like this #include stdio.h #include unistd.h sysconf 3 int main void printf The page size for this system is ld bytes... void printf The page size for this system is ld bytes. n sysconf _SC_PAGESIZE return 0 which gives the output The page size for..

How to get memory usage at run time in c++?

http://stackoverflow.com/questions/669438/how-to-get-memory-usage-at-run-time-in-c

care about the rest stat_stream.close long page_size_kb sysconf _SC_PAGE_SIZE 1024 in case x86 64 is configured to use 2MB pages..

About command line arguments of main function

http://stackoverflow.com/questions/7498892/about-command-line-arguments-of-main-function

xargs figures out maximum command line length using sysconf _SC_ARG_MAX which yields the same value as reported by getconf..

timespec equivalent for windows

http://stackoverflow.com/questions/8583308/timespec-equivalent-for-windows

divisor CLOCKS_PER_SEC clock_t times struct tms divisor sysconf _SC_CLK_TCK Both divisors are 1000 POSIX may have 1000000 for..