vms-vaxc man page on DigitalUNIX

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Digital UNIX Diffs - vms-vaxc(5)	      Digital UNIX Diffs - vms-vaxc(5)

       vms-vaxc -  OpenVMS VAX C vs DEC C Differences

       OpenVMS has 2 C compilers: VAX C and DEC C.  VAX C is an older compiler
       and runtime library than DEC C.	VAX C predated the recent  ANSI	 stan‐
       dards and as a result is more relaxed implementation of the C language.
       DEC C is available on both OpenVMS and Digital UNIX; VAX C is not.

       Each compiler has its own runtime library on OpenVMS: the VAX C Runtime
       Library	and  the  DEC  C  Runtime  Library.  The functions in the vms-
       vaxc(5) category have different runtime semantics between these 2  run‐
       time  libraries.	 Thus if you are porting from OpenVMS VAX C to Digital
       UNIX DEC C, you should review these semantic differences.  Most of  the
       differences  result from DEC C adhering to the recent ANSI standard for

       Functions:   abort(5),  atexit(5),  fflush(5),  fopen(5),   freopen(5),
       fdopen(5),   fseek(5),  rewind(5),  ftell(5),  fsetpos(5),  fgetpos(5),
       gets(5),	  fgets(5),   open(5),	 creat(5),   printf(5),	   fprintf(5),
       sprintf(5),  scanf(5),  fscanf(5),  sscanf(5),  setbuf(5),  setvbuf(5),
       ungetc(5), vprintf(5), vfprintf(5), vsprintf(5), write(5), fwrite(5)


       delim off

					      Digital UNIX Diffs - vms-vaxc(5)

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