Actual source code: fwd.c
petsc-3.10.5 2019-03-28
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      2: /*
      3:       Code for manipulating files.
      4: */
      5:  #include <petscsys.h>
      6: #if defined(PETSC_HAVE_PWD_H)
      7: #include <pwd.h>
      8: #endif
      9: #include <ctype.h>
     10: #include <sys/stat.h>
     11: #if defined(PETSC_HAVE_UNISTD_H)
     12: #include <unistd.h>
     13: #endif
     14: #if defined(PETSC_HAVE_SYS_UTSNAME_H)
     15: #include <sys/utsname.h>
     16: #endif
     17: #if defined(PETSC_HAVE_DIRECT_H)
     18: #include <direct.h>
     19: #endif
     20: #if defined(PETSC_HAVE_SYS_SYSTEMINFO_H)
     21: #include <sys/systeminfo.h>
     22: #endif

     24: /*@C
     25:    PetscGetWorkingDirectory - Gets the current working directory.

     27:    Not Collective

     29:    Input Parameters:
     30: .  len  - maximum length of path

     32:    Output Parameter:
     33: .  path - use to hold the result value. The string should be long enough
     34:           to hold the path.

     36:    Level: developer

     38:    Concepts: working directory

     40: @*/
     41: PetscErrorCode  PetscGetWorkingDirectory(char path[],size_t len)
     42: {
     44: #if defined(PETSC_HAVE_GETCWD)
     45:   if (!getcwd(path,len)) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"getcwd()");
     46: #elif defined(PETSC_HAVE__GETCWD)
     47:   _getcwd(path,len);
     48: #elif defined(PETSC_HAVE_GETWD)
     49:   getwd(path);
     50: #else
     51:   SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP_SYS, "Could not find getcwd() or getwd()");
     52: #endif
     53:   return(0);
     54: }