what does `l` in `lseek` of unistd.h mean?
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I am reading APUE to explore the details of C and Unix, and encounter lseek
NAME
lseek - move the read/write file offset
SYNOPSIS
#include <unistd.h>
off_t lseek(int fildes, off_t offset, int whence);
What does l mean, is it length?
c unix lseek
edited Nov 12 at 9:21
gsamaras
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
|
show 4 more comments
up vote
0
down vote
favorite
I am reading APUE to explore the details of C and Unix, and encounter lseek
NAME
lseek - move the read/write file offset
SYNOPSIS
#include <unistd.h>
off_t lseek(int fildes, off_t offset, int whence);
What does l mean, is it length?
c unix lseek
edited Nov 12 at 9:21
gsamaras
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
10
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
1
lis for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..
– gsamaras
Nov 12 at 9:05
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
1
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
1
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19
|
show 4 more comments
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am reading APUE to explore the details of C and Unix, and encounter lseek
NAME
lseek - move the read/write file offset
SYNOPSIS
#include <unistd.h>
off_t lseek(int fildes, off_t offset, int whence);
What does l mean, is it length?
c unix lseek
edited Nov 12 at 9:21
gsamaras
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
I am reading APUE to explore the details of C and Unix, and encounter lseek
NAME
lseek - move the read/write file offset
SYNOPSIS
#include <unistd.h>
off_t lseek(int fildes, off_t offset, int whence);
What does l mean, is it length?
c unix lseek
c unix lseek
edited Nov 12 at 9:21
gsamaras
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
edited Nov 12 at 9:21
gsamaras
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
edited Nov 12 at 9:21
gsamaras
50k2398182
edited Nov 12 at 9:21
gsamaras
50k2398182
edited Nov 12 at 9:21
gsamaras
50k2398182
50k2398182
asked Nov 12 at 9:01
JawSaw
4,01011633
asked Nov 12 at 9:01
JawSaw
4,01011633
asked Nov 12 at 9:01
JawSaw
4,01011633
4,01011633
10
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
1
lis for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..
– gsamaras
Nov 12 at 9:05
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
1
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
1
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19
|
show 4 more comments
10
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
1
lis for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..
– gsamaras
Nov 12 at 9:05
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
1
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
1
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19
10
10
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
1
1
l is for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..– gsamaras
Nov 12 at 9:05
l is for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..– gsamaras
Nov 12 at 9:05
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
1
1
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
1
1
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19
|
show 4 more comments
1 Answer
1
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oldest
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up vote
4
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l is for long integer.
It is named like that to differentiate from the old seek() in version 2 of AT&T Unix. This is an anachronism before the off_t type was introduced.
References:
Infohost indicates:
The character
lin the namelseekmeans "long integer". Before the
introduction of theoff_tdata type, the offset argument and the
return value were long integers.lseekwas introduced with Version 7
when long integers were added to C. (Similar functionality was
provided in Version 6 by the functionsseekandtell.)
As noted at the foot of lseek.html:
A seek() function appeared in Version 2 AT&T UNIX, later renamed into
lseek() for ``long seek'' due to a larger offset argument type.
Note: Paraphrased from Why is the function called lseek(), not seek()?
answered Nov 12 at 9:17
gsamaras
50k2398182
add a comment |
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up vote
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l is for long integer.
It is named like that to differentiate from the old seek() in version 2 of AT&T Unix. This is an anachronism before the off_t type was introduced.
References:
Infohost indicates:
The character
lin the namelseekmeans "long integer". Before the
introduction of theoff_tdata type, the offset argument and the
return value were long integers.lseekwas introduced with Version 7
when long integers were added to C. (Similar functionality was
provided in Version 6 by the functionsseekandtell.)
As noted at the foot of lseek.html:
A seek() function appeared in Version 2 AT&T UNIX, later renamed into
lseek() for ``long seek'' due to a larger offset argument type.
Note: Paraphrased from Why is the function called lseek(), not seek()?
answered Nov 12 at 9:17
gsamaras
50k2398182
add a comment |
up vote
4
down vote
l is for long integer.
It is named like that to differentiate from the old seek() in version 2 of AT&T Unix. This is an anachronism before the off_t type was introduced.
References:
Infohost indicates:
The character
lin the namelseekmeans "long integer". Before the
introduction of theoff_tdata type, the offset argument and the
return value were long integers.lseekwas introduced with Version 7
when long integers were added to C. (Similar functionality was
provided in Version 6 by the functionsseekandtell.)
As noted at the foot of lseek.html:
A seek() function appeared in Version 2 AT&T UNIX, later renamed into
lseek() for ``long seek'' due to a larger offset argument type.
Note: Paraphrased from Why is the function called lseek(), not seek()?
answered Nov 12 at 9:17
gsamaras
50k2398182
add a comment |
up vote
4
down vote
up vote
4
down vote
l is for long integer.
It is named like that to differentiate from the old seek() in version 2 of AT&T Unix. This is an anachronism before the off_t type was introduced.
References:
Infohost indicates:
The character
lin the namelseekmeans "long integer". Before the
introduction of theoff_tdata type, the offset argument and the
return value were long integers.lseekwas introduced with Version 7
when long integers were added to C. (Similar functionality was
provided in Version 6 by the functionsseekandtell.)
As noted at the foot of lseek.html:
A seek() function appeared in Version 2 AT&T UNIX, later renamed into
lseek() for ``long seek'' due to a larger offset argument type.
Note: Paraphrased from Why is the function called lseek(), not seek()?
answered Nov 12 at 9:17
gsamaras
50k2398182
l is for long integer.
It is named like that to differentiate from the old seek() in version 2 of AT&T Unix. This is an anachronism before the off_t type was introduced.
References:
Infohost indicates:
The character
lin the namelseekmeans "long integer". Before the
introduction of theoff_tdata type, the offset argument and the
return value were long integers.lseekwas introduced with Version 7
when long integers were added to C. (Similar functionality was
provided in Version 6 by the functionsseekandtell.)
As noted at the foot of lseek.html:
A seek() function appeared in Version 2 AT&T UNIX, later renamed into
lseek() for ``long seek'' due to a larger offset argument type.
Note: Paraphrased from Why is the function called lseek(), not seek()?
answered Nov 12 at 9:17
gsamaras
50k2398182
edited Nov 12 at 9:23
answered Nov 12 at 9:17
gsamaras
50k2398182
answered Nov 12 at 9:17
gsamaras
50k2398182
answered Nov 12 at 9:17
gsamaras
50k2398182
50k2398182
add a comment |
add a comment |
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10
softwareengineering.stackexchange.com/questions/244525/…
– bolov
Nov 12 at 9:03
1
lis for long, as @bolov suggests. However, I cannot mark that as a duplicate, since it's on another stack exchange site. Posting an answer with the same content doesn't feel right also.. Hmm..– gsamaras
Nov 12 at 9:05
I feel sort of know nothing about C when start to read APUE.
– JawSaw
Nov 12 at 9:07
1
@gsamaras: I agree. But posting the same answer and linking to the original answer on Software Engineering might still be appropriate.
– Sani Singh Huttunen
Nov 12 at 9:10
1
@SaniSinghHuttunen you are right, I checked on meta site, and they say exactly this, so I went ahead and posted an answer! Swordfish, nice timing, but I posted an answer already. :) Lunding, of course it's not off-topic, I just didn't know what to do with cross-site duplicates. Now that I read the meta post, I know! :)
– gsamaras
Nov 12 at 9:19