gd_nfields_by_type(3) GETDATA gd_nfields_by_type(3)NAME
gd_nfields_by_type -- report the number of fields of a given type in a dirfile
SYNOPSIS
#include <getdata.h>
unsigned int gd_nfields_by_type(DIRFILE *dirfile, gd_entype_t type);
DESCRIPTION
The gd_nfields_by_type() function queries a dirfile(5) database specified by dirfile and returns the number of fields of type type defined
in the database. Notably, this count does not include /META fields.
The dirfile argument must point to a valid DIRFILE object previously created by a call to gd_open(3). The type argument should be one of
the following symbols indicating the type of field to count:
GD_BIT_ENTRY, GD_CARRAY_ENTRY, GD_CONST_ENTRY, GD_DIVIDE_ENTRY, GD_INDEX_ENTRY, GD_LINCOM_ENTRY, GD_LINTERP_ENTRY,
GD_MULTIPLY_ENTRY, GD_PHASE_ENTRY, GD_POLYNOM_ENTRY, GD_RAW_ENTRY, GD_RECIP_ENTRY, GD_SBIT_ENTRY, GD_STRING_ENTRY.
RETURN VALUE
Upon successful completion, gd_nfields_by_type() returns the number of defined fields in the dirfile. On error, it returns zero and sets
the dirfile error to a non-zero error value. Possible error values are:
GD_E_BAD_DIRFILE
The supplied dirfile was invalid.
The dirfile error may be retrieved by calling gd_error(3). A descriptive error string for the last error encountered can be obtained from
a call to gd_error_string(3).
SEE ALSO dirfile(5), gd_open(3), gd_error(3), gd_error_string(3), gd_field_list_by_type(3), gd_nfields(3), gd_nmfields_by_type(3)Version 0.7.0 3 November 2010 gd_nfields_by_type(3)
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gd_field_list(3) GETDATA gd_field_list(3)NAME
gd_field_list -- retrieve a list of fields in a dirfile
SYNOPSIS
#include <getdata.h>
const char **gd_field_list(DIRFILE *dirfile);
DESCRIPTION
The gd_field_list() function queries a dirfile(5) database specified by dirfile and returns a read-only list of names of the all fields de-
fined in the database. Notably, this list does not include /META subfields.
The dirfile argument must point to a valid DIRFILE object previously created by a call to gd_open(3).
The array returned will be de-allocated by a call to gd_close(3) and should not be de-allocated by the caller. The list returned should
not be assumed to be in any particular order. The array is terminated by a NULL pointer. The number of strings in the array can be ob-
tained from a call to gd_nfields(3).
The caller may not modify any strings in the array, or the array itself. Doing so may cause database corruption. The pointer returned is
guaranteed to be valid until gd_field_list() is called again on the same DIRFILE object, or until the array is de-allocated by a call to
gd_close(3).
RETURN VALUE
Upon successful completion, gd_field_list() returns a pointer to an array of strings containing the names of all the fields defined in the
dirfile database. On error it returns NULL and sets the dirfile error to a non-zero error value. Possible error values are:
GD_E_ALLOC
The library was unable to allocate memory.
GD_E_BAD_DIRFILE
The supplied dirfile was invalid.
The dirfile error may be retrieved by calling gd_error(3). A descriptive error string for the last error encountered can be obtained from
a call to gd_error_string(3).
SEE ALSO dirfile(5), gd_cbopen(3), gd_error(3), gd_error_string(3), gd_field_list_by_type(3), gd_mfield_list(3), gd_nfields(3), gd_vector_list(3)Version 0.7.0 15 October 2010 gd_field_list(3)
Dear,
How to copy update without interactive confirmation?
I am using
#cp -Rfu dirfile dirfile
But the interactive confirmation still exist.
Thank you. (0 Replies)
Dear All,
Please help me to do this.
I have a file like this.
5|94662240807|94776109911|94776325901|94779007172||||||
5|94112925421|94352240384|94352259199|94672229012||||||
5|94714242745|94722952461|94777660793|94788914465||||||
5|94242224624|94776145420|94776172499|94776531059||||||
... (7 Replies)
hi forums
i need help with a little problem i am having.
i need to count the number of fields that are in a saved variable so i can use that number to make a different function work properly.
is there a way of doing this without using SED/AWK?
anything would be greatly appreciated (4 Replies)
I am a beginner to scripting, please help me in this regard.
How do I create a script that provides a count of distinct values of all the fields in the pipe delimited file ? I have 20 different files with multiple columns in each file. I needed to write a generic script where I give the number... (1 Reply)