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Fortran Library Reference

chdir: Change Default Directory

The function is called by:

INTEGER*4 chdir

n = chdir( dirname )

dirname

character

Input 

Directory name  

Return value  

INTEGER*4

Output 

n=0: OK, n>0: Error code

Example: chdir--change cwd to MyDir: 

    INTEGER*4  chdir, n
    n =  chdir ( 'MyDir' )
    if ( n .ne. 0 ) stop 'chdir: error'
    end

See also: chdir(2), cd(1), and gerror(3F) to interpret error codes.

Path names can be no longer than MAXPATHLEN as defined in <sys/param.h>. They can be relative or absolute paths.

Use of this function can cause inquire by unit to fail.

Certain FORTRAN file operations reopen files by name. Using chdir while doing I/O can cause the runtime system to lose track of files created with relative path names. including the files that are created by open statements without file names.