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strcat(2): 0 → nil in manpage in refrence to pointers

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This commit is contained in:
Jacob Moody 2021-07-12 21:42:39 +00:00
parent e8259861da
commit 5a23b752eb
1 changed files with 6 additions and 14 deletions
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20
sys/man/2/strcat
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@ -161,9 +161,7 @@ occurrence of byte
.I c .I c
in string in string
.IR s , .IR s ,
or or nil if
.L 0
if
.I c .I c
does not occur in the string. does not occur in the string.
The null byte terminating a string is considered to The null byte terminating a string is considered to
@ -174,8 +172,7 @@ returns a pointer to the first occurrence in string
.I s1 .I s1
of any byte from string of any byte from string
.IR s2 , .IR s2 ,
.L 0 nil if no byte from
if no byte from
.I s2 .I s2
exists in exists in
.IR s1 . .IR s1 .
@ -205,9 +202,7 @@ keeps track of its position in the string
between separate calls; subsequent calls, between separate calls; subsequent calls,
signified by signified by
.I s1 .I s1
being being nil, will work through the string
.LR 0 ,
will work through the string
.I s1 .I s1
immediately following that token. immediately following that token.
The separator string The separator string
@ -215,24 +210,21 @@ The separator string
may be different from call to call. may be different from call to call.
When no token remains in When no token remains in
.IR s1 , .IR s1 ,
.L 0 nil is returned.
is returned.
.PP .PP
.I Strdup .I Strdup
returns a pointer to a distinct copy of the null-terminated string returns a pointer to a distinct copy of the null-terminated string
.I s .I s
in space obtained from in space obtained from
.IR malloc (2) .IR malloc (2)
or or nil if no space can be obtained.
.L 0
if no space can be obtained.
.PP .PP
.I Strstr .I Strstr
returns a pointer to the first occurrence of returns a pointer to the first occurrence of
.I s2 .I s2
as a substring of as a substring of
.IR s1 , .IR s1 ,
or 0 if there is none. or nil if there is none.
If If
.I s2 .I s2
is the null string, is the null string,