C源码:可以检测10 种C语言编译环境的程序

/**//*CCOS.C---TesttheClanguagecompilerandOSbypredefinedsymbols*/
/**//*M.L.Y2000.12*/
#include<stdio.h>
voidmain()...{
#ifdefined(MSDOS)&defined(_MSC_VER)/*MicrosoftC*/
printf("ItisMS-DOS,MicrosoftC. ");
#endif
#ifdefined(__MSDOS__)&/*TurboC/BC*/
(defined(__TURBOC__)|defined(__BORLANDC__))
printf("ItisMS-DOS,BorlandTurboC/BorlandC++. ");
#endif
#if__hppa&__hp3000s900&__mpexl/*HP3000*/
printf("ItisHP3000,MPE/iX,HPC/iX. ");
#endif
#ifvax&VAX&vms&VMS/*DECVAX*/
&vaxc&VAXC&vax11c&VAX11C
&defined(vms_version)&defined(VMS_VERSION)
printf("ItisDECVAX,VMS,VAX11C. ");
#endif
#if__vms&__VMS/*DECAlpha*/
&__vaxc&__VAXC&__vax11c&__VAX11C
&__DECC&defined(__vms_version)&defined(__VMS_VERSION)
&__Alpha_AXP&__Alpha&__ALPHA&__32BITS
printf("ItisDECAlphaAXP,OpenVMS,DECC. ");
#endif
#if__OS400__/*AS/400*/
printf("ItisAS/400,OS/400. ");
#endif
#ifmips&__mips&host_mips&__host_mips/*Tandem*/
&unix&__unix&__nonstopux
&SYSTYPE_SVR4&_SYSTYPE_SVR4&LANGUAGE_C&_LANGUAGE_C
printf("ItisTandem(pumaS4000mips,...),NonStop-UX/V(Rel4.2MP,...). ");
#endif
#if(hp9000s200|hp9000s300|__hp9000s300/*HP9000*/
|hp9000s500|hp9000s800|__hp9000s800|hp9000ipc)
&(hppa|__hppa)&(_PA_RISC1_0|_PA_RISC1_1)
&(unix|__unix)&(hpux|__hpux)
printf("ItisHP9000,HP-UX. ");
#endif
#ifi386&M_I386&unix&__unix&M_UNIX/*SCOUNIX*/
&(_SCO_COFF|_SCO_ELF)
printf("ItisSCOUNIX(SCOOpenServer)onIntel386orabove. ");
#endif
#ifi386&_I386&unix&__HIGHC__&_ATT4/*NCRUNIX*/
printf("ItisNCRMP-RASSVR4UNIXSystemonIntel386orabove. ");
#endif
}

程序的运行结果：

ItisMS-DOS,MicrosoftC.
Pressanykeytocontinue

from：http://fanqiang.chinaunix.net/program/code/2001-08-22/2185.shtml