free_form3form
Create and destroy forms
Part of new(3form).
Usage
#include <form.h>
FORM *new_form(FIELD **fields); int free_form(FORM *form);
Overview
The function new_form creates a new form connected to a specified field pointer array (which must be NULL-terminated).
The function free_form disconnects form from its field array and frees the storage allocated for the form.
Return value
The function new_form returns NULL on error. It sets errno according to the function's success:
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The routine succeeded. |
|---|---|
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Routine detected an incorrect or out-of-range argument. |
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The field is already connected to a form. |
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System error occurred, e.g., malloc failure. |
The function free_form returns one of the following:
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The routine succeeded. |
|---|---|
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Routine detected an incorrect or out-of-range argument. |
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The form has already been posted. |
Portability
These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
Releases
12 releases since Debian 3.0 (Woody); the text changed 9 times.