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LibC: unistd.h should provide SEEK_SET etc. if stdio.h is not included (#629)

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Seems POSIX is odd and unistd also defines SEEK_SET if stdio.h
This simply follows the pattern several other C libraries take of setting
these macros to the same values in stdio if that header is not included.
This commit is contained in:
Vincent Sanders 2019-10-04 10:02:42 +01:00 • committed by Andreas Kling
parent 4288cfa65a
commit 79d8b9ae75
1 changed files with 15 additions and 0 deletions
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15
Libraries/LibC/unistd.h
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@ -1,3 +1,10 @@
/* standard symbolic constants and types
*
* values from POSIX standard unix specification
*
* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
*/
#pragma once #pragma once
#include <errno.h> #include <errno.h>
@ -12,6 +19,14 @@ __BEGIN_DECLS
#define STDOUT_FILENO 1 #define STDOUT_FILENO 1
#define STDERR_FILENO 2 #define STDERR_FILENO 2
/* lseek whence values */
#ifndef _STDIO_H /* also defined in stdio.h */
#define SEEK_SET 0 /* from beginning of file. */
#define SEEK_CUR 1 /* from current position in file. */
#define SEEK_END 2 /* from the end of the file. */
#endif
extern char** environ; extern char** environ;
int get_process_name(char* buffer, int buffer_size); int get_process_name(char* buffer, int buffer_size);