52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
includes.txt
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============
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The include policy for the files in app/ is as follows:
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Each subdirectory has a <module>-types.h file which defines the type
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space known to this module. All .c files in the directory include this
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(and only this) <module>-types.h file. <foo>-types.h files from other
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modules are included from the <module>-types.h file only. This way
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<module>-types.h becomes the only place where the namespace known to a
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module is defined.
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***** .h files *****
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No .h file includes anything, with two exceptions:
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- objects include their immediate parent class
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- if the header uses stuff like time_t (or off_t), it includes
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<time.h> (or <sys/types.h>). This only applies to system stuff!
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***** .c files *****
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The include order of all .c files of a module is as follows:
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/* example of a .c file from app/core */
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#include "config.h" /* always and first */
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#include <glib.h> /* *only* needed if the file needs stuff */
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/* like G_OS_WIN32 for conditional inclusion */
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/* of system headers */
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#include <system headers> /* like <stdio.h> */
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#include <glib-object.h>
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#include "libpikafoo/pikafoo.h" /* as needed, e.g. "libpikabase/pikabase.h" */
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#include "libpikabar/pikabar.h"
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#include "core-types.h" /* and _no_ other foo-types.h file */
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#include "base/foo.h" /* files from modules below this one */
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#include "base/bar.h"
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#include "pika.h" /* files from this module */
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#include "pikaimage.h"
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#include "pikawhatever.h"
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#include "pika-intl.h" /* if needed, *must* be the last include */
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