<</usr/include/sys/types.h>> #ifndef __ssize_t_defined typedef __ssize_t ssize_t; # define __ssize_t_defined <</usr/include/bits/types.h>> __STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error. */ <</usr/include/bits/typesize.h>> #define __SSIZE_T_TYPE __SWORD_TYPE <</usr/include/bits/types.h>> #if __WORDSIZE == 32 ... # define __SWORD_TYPE int #elif __WORDSIZE == 64 # define __SWORD_TYPE long int
#include <stdio.h> int main(int argc, char **argv) { printf("WORD SIZE %d\n", __WORDSIZE); }
# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping : 6 cpu MHz : 1596.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow bogomips : 4795.31 clflush size : 64 power management: # uname -a Linux yundream-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
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