Add {str,mem}[r][case]eqlen

Signed-off-by: Mattias Andrée <maandree@kth.se>

51 files changed, 651 insertions, 35 deletions

diff --git a/man/libsimple_getenv_e.3 b/man/libsimple_getenv_e.3
index 27fba39..7e3a3ca 100644
--- a/man/libsimple_getenv_e.3
+++ b/man/libsimple_getenv_e.3
@@ -11,7 +11,7 @@ static inline const char *libsimple_getenv_e(const char *\fIname\fP);
 # define getenv_e libsimple_getenv_e
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_getenv_ne.3 b/man/libsimple_getenv_ne.3
index a0eca77..55b592e 100644
--- a/man/libsimple_getenv_ne.3
+++ b/man/libsimple_getenv_ne.3
@@ -11,7 +11,7 @@ static inline char *libsimple_getenv_ne(const char *\fIname\fP);
 # define getenv_ne libsimple_getenv_ne
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_memcaseeqlen.3 b/man/libsimple_memcaseeqlen.3
new file mode 100644
index 0000000..8cad3ca
--- /dev/null
+++ b/man/libsimple_memcaseeqlen.3
@@ -0,0 +1,75 @@
+.TH LIBSIMPLE_MEMCASEEQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_memcaseeqlen \- check initial commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_memcaseeqlen(const void *\fIa\fP, size_t \fIn\fP, const void *\fIb\fP, size_t \fIm\fP);
+
+#ifndef memcaseeqlen
+# define memcaseeqlen libsimple_memcaseeqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_memcaseeqlen ()
+function scans the number of bytes the byte array
+.IR a ,
+with size
+.IR n ,
+have in common the byte array
+.IR b ,
+with size
+.IR m ,
+at their beginnings.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_memcaseeqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their beginnings.
+.SH ERRORS
+The
+.BR libsimple_memcaseeqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_memcaseeqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_memcaseeqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_memcaseeqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_memeqlen (3),
+.BR libsimple_memrcaseeqlen (3)
diff --git a/man/libsimple_memelem.3 b/man/libsimple_memelem.3
index 5e54171..833e246 100644
--- a/man/libsimple_memelem.3
+++ b/man/libsimple_memelem.3
@@ -11,7 +11,7 @@ void *libsimple_memelem(const void *\fIhaystack\fP, size_t \fInhaystack\fP, cons
 # define memelem libsimple_memelem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -27,6 +27,8 @@ with the size
 .IR nneedle ,
 and with an offset equivalent to zero modulo
 .IR nneedle .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memelem ()
diff --git a/man/libsimple_memends.3 b/man/libsimple_memends.3
index 114cedb..8ab4f81 100644
--- a/man/libsimple_memends.3
+++ b/man/libsimple_memends.3
@@ -11,7 +11,7 @@ void *libsimple_memends(const void *\fIs\fP, size_t \fIn\fP, const void *\fIt\fP
 # define memends libsimple_memends
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -31,6 +31,8 @@ is the same as the
 .I m
 first bytes of
 .IR t .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memends ()
diff --git a/man/libsimple_memeq.3 b/man/libsimple_memeq.3
index fa1ac20..1deca9c 100644
--- a/man/libsimple_memeq.3
+++ b/man/libsimple_memeq.3
@@ -11,7 +11,7 @@ void *libsimple_memeq(const void *\fIa\fP, const void *\fIb\fP, size_t \fIn\fP);
 # define memeq libsimple_memeq
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -24,6 +24,8 @@ bytes of
 and
 .I b
 are equal.
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memeq ()
@@ -67,4 +69,5 @@ None.
 .SH BUGS
 None.
 .SH SEE ALSO
+.BR libsimple_memeqlen (3),
 .BR memcmp (3)
diff --git a/man/libsimple_memeqlen.3 b/man/libsimple_memeqlen.3
new file mode 100644
index 0000000..6ef9121
--- /dev/null
+++ b/man/libsimple_memeqlen.3
@@ -0,0 +1,75 @@
+.TH LIBSIMPLE_MEMEQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_memeqlen \- check initial commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_memeqlen(const void *\fIa\fP, size_t \fIn\fP, const void *\fIb\fP, size_t \fIm\fP);
+
+#ifndef memeqlen
+# define memeqlen libsimple_memeqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_memeqlen ()
+function scans the number of bytes the byte array
+.IR a ,
+with size
+.IR n ,
+have in common the byte array
+.IR b ,
+with size
+.IR m ,
+at their beginnings.
+.PP
+The comparison is case-sensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_memeqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their beginnings.
+.SH ERRORS
+The
+.BR libsimple_memeqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_memeqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_memeqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_memeqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_memcaseeqlen (3),
+.BR libsimple_memreqlen (3)
diff --git a/man/libsimple_memmem.3 b/man/libsimple_memmem.3
index 18dec5d..15437cd 100644
--- a/man/libsimple_memmem.3
+++ b/man/libsimple_memmem.3
@@ -11,7 +11,7 @@ void *libsimple_memmem(const void *\fIhaystack\fP, size_t \fInhaystack\fP, const
 # define memmem libsimple_memmem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -25,6 +25,8 @@ for the first occurence of the byte string
 .I needle
 with the size
 .IR nneedle .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memmem ()
diff --git a/man/libsimple_mempcpy.3 b/man/libsimple_mempcpy.3
index 4d4c514..26531b5 100644
--- a/man/libsimple_mempcpy.3
+++ b/man/libsimple_mempcpy.3
@@ -11,7 +11,7 @@ void *libsimple_mempcpy(void *\fIdest\fP, const void *\fIsrc\fP, size_t \fIn\fP)
 # define mempcpy libsimple_mempcpy
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_mempset.3 b/man/libsimple_mempset.3
index 33b610c..f75e424 100644
--- a/man/libsimple_mempset.3
+++ b/man/libsimple_mempset.3
@@ -11,7 +11,7 @@ void *libsimple_mempset(void *\fIs\fP, int \fIc\fP, size_t \fIn\fP);
 # define mempset libsimple_mempset
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_mempsetelem.3 b/man/libsimple_mempsetelem.3
index ca52a2e..0b32228 100644
--- a/man/libsimple_mempsetelem.3
+++ b/man/libsimple_mempsetelem.3
@@ -11,7 +11,7 @@ void *libsimple_mempsetelem(void *\fIbuf\fP, const void *\fIitem\fP, size_t \fIs
 # define mempsetelem libsimple_mempsetelem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_memrcaseeqlen.3 b/man/libsimple_memrcaseeqlen.3
new file mode 100644
index 0000000..ce6838c
--- /dev/null
+++ b/man/libsimple_memrcaseeqlen.3
@@ -0,0 +1,75 @@
+.TH LIBSIMPLE_MEMRCASEEQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_memrcaseeqlen \- check terminal commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_memrcaseeqlen(const void *\fIa\fP, size_t \fIn\fP, const void *\fIb\fP, size_t \fIm\fP);
+
+#ifndef memrcaseeqlen
+# define memrcaseeqlen libsimple_memrcaseeqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_memrcaseeqlen ()
+function scans the number of bytes the byte array
+.IR a ,
+with size
+.IR n ,
+have in common the byte array
+.IR b ,
+with size
+.IR m ,
+at their ends.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_memrcaseeqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their ends.
+.SH ERRORS
+The
+.BR libsimple_memrcaseeqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_memrcaseeqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_memrcaseeqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_memrcaseeqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_memreqlen (3),
+.BR libsimple_memcaseeqlen (3)
diff --git a/man/libsimple_memrchr.3 b/man/libsimple_memrchr.3
index b0a01a7..8fd74f7 100644
--- a/man/libsimple_memrchr.3
+++ b/man/libsimple_memrchr.3
@@ -11,7 +11,7 @@ void *libsimple_memrchr(const void *\fIs\fP, int \fIc\fP, size_t \fIn\fP);
 # define memrchr libsimple_memrchr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -25,6 +25,8 @@ for the last occurence of the byte
 .I c
 (it is converted to a
 .BR char ).
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memrchr ()
diff --git a/man/libsimple_memrelem.3 b/man/libsimple_memrelem.3
index 66f7bd8..203ffee 100644
--- a/man/libsimple_memrelem.3
+++ b/man/libsimple_memrelem.3
@@ -11,7 +11,7 @@ void *libsimple_memrelem(const void *\fIhaystack\fP, size_t \fInhaystack\fP, con
 # define memrelem libsimple_memrelem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -27,6 +27,8 @@ with the size
 .IR nneedle ,
 and with an offset equivalent to zero modulo
 .IR nneedle .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memrelem ()
diff --git a/man/libsimple_memreqlen.3 b/man/libsimple_memreqlen.3
new file mode 100644
index 0000000..80ae98e
--- /dev/null
+++ b/man/libsimple_memreqlen.3
@@ -0,0 +1,75 @@
+.TH LIBSIMPLE_MEMREQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_memreqlen \- check terminal commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_memreqlen(const void *\fIa\fP, size_t \fIn\fP, const void *\fIb\fP, size_t \fIm\fP);
+
+#ifndef memreqlen
+# define memreqlen libsimple_memreqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_memreqlen ()
+function scans the number of bytes the byte array
+.IR a ,
+with size
+.IR n ,
+have in common the byte array
+.IR b ,
+with size
+.IR m ,
+at their ends.
+.PP
+The comparison is case-sensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_memreqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their ends.
+.SH ERRORS
+The
+.BR libsimple_memreqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_memreqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_memreqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_memreqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_memrcaseeqlen (3),
+.BR libsimple_memeqlen (3)
diff --git a/man/libsimple_memrmem.3 b/man/libsimple_memrmem.3
index aae6572..8ee94c2 100644
--- a/man/libsimple_memrmem.3
+++ b/man/libsimple_memrmem.3
@@ -11,7 +11,7 @@ void *libsimple_memrmem(const void *\fIhaystack\fP, size_t \fInhaystack\fP, cons
 # define memrmem libsimple_memrmem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -25,6 +25,8 @@ for the last occurence of the byte string
 .I needle
 with the size
 .IR nneedle .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memrmem ()
diff --git a/man/libsimple_memsetelem.3 b/man/libsimple_memsetelem.3
index 700310a..516a20b 100644
--- a/man/libsimple_memsetelem.3
+++ b/man/libsimple_memsetelem.3
@@ -11,7 +11,7 @@ static inline void *libsimple_memsetelem(void *\fIbuf\fP, const void *\fIitem\fP
 # define memsetelem libsimple_memsetelem
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_memstarts.3 b/man/libsimple_memstarts.3
index e5e183b..13713a2 100644
--- a/man/libsimple_memstarts.3
+++ b/man/libsimple_memstarts.3
@@ -11,7 +11,7 @@ void *libsimple_memstarts(const void *\fIs\fP, size_t \fIn\fP, const void *\fIt\
 # define memstarts libsimple_memstarts
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -29,6 +29,8 @@ is the same as the
 .I m
 first bytes of
 .IR t .
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_memstarts ()
diff --git a/man/libsimple_rawmemchr.3 b/man/libsimple_rawmemchr.3
index 2991b1f..4126fbb 100644
--- a/man/libsimple_rawmemchr.3
+++ b/man/libsimple_rawmemchr.3
@@ -11,7 +11,7 @@ void *libsimple_rawmemchr(const void *\fIs\fP, int \fIc\fP);
 # define rawmemchr libsimple_rawmemchr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -29,6 +29,8 @@ The
 function assumes there is at least one
 occurence, its behaviour is undefined
 if this is not the case.
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_rawmemchr ()
diff --git a/man/libsimple_rawmemrchr.3 b/man/libsimple_rawmemrchr.3
index c445794..198daa6 100644
--- a/man/libsimple_rawmemrchr.3
+++ b/man/libsimple_rawmemrchr.3
@@ -11,7 +11,7 @@ void *libsimple_rawmemrchr(const void *s, int c, size_t n);
 # define rawmemrchr libsimple_rawmemrchr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -31,6 +31,8 @@ The
 function assumes there is at least one
 occurence, its behaviour is undefined
 if this is not the case.
+.PP
+The comparison is case-sensitive.
 .SH RETURN VALUE
 The
 .BR libsimple_rawmemrchr ()
diff --git a/man/libsimple_strcasechr.3 b/man/libsimple_strcasechr.3
index f100ac8..c7cc780 100644
--- a/man/libsimple_strcasechr.3
+++ b/man/libsimple_strcasechr.3
@@ -11,7 +11,7 @@ char *libsimple_strcasechr(const char *\fIs\fP, int \fIc\fP);
 # define strcasechr libsimple_strcasechr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcasechrnul.3 b/man/libsimple_strcasechrnul.3
index a92387d..81bdc7a 100644
--- a/man/libsimple_strcasechrnul.3
+++ b/man/libsimple_strcasechrnul.3
@@ -11,7 +11,7 @@ char *libsimple_strcasechrnul(const char *\fIs\fP, int \fIc\fP);
 # define strcasechrnul libsimple_strcasechrnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcasecmpnul.3 b/man/libsimple_strcasecmpnul.3
index ffd0f8d..e07b551 100644
--- a/man/libsimple_strcasecmpnul.3
+++ b/man/libsimple_strcasecmpnul.3
@@ -11,7 +11,7 @@ static inline int libsimple_strcasecmpnul(const char *\fIa\fP, const char *\fIb\
 # define strcasecmpnul libsimple_strcasecmpnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcaseends.3 b/man/libsimple_strcaseends.3
index 4a792a3..ff9a578 100644
--- a/man/libsimple_strcaseends.3
+++ b/man/libsimple_strcaseends.3
@@ -11,7 +11,7 @@ int libsimple_strcaseends(const char *\fIs\fP, const char *\fIt\fP);
 # define strcaseends libsimple_strcaseends
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcaseeq.3 b/man/libsimple_strcaseeq.3
index 41fb3c1..d38b439 100644
--- a/man/libsimple_strcaseeq.3
+++ b/man/libsimple_strcaseeq.3
@@ -11,7 +11,7 @@ static inline int libsimple_strcaseeq(const char *\fIa\fP, const char *\fIb\fP);
 # define strcaseeq libsimple_strcaseeq
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -69,4 +69,5 @@ None.
 .SH SEE ALSO
 .BR libsimple_strcaseeqnul (3),
 .BR libsimple_streq (3),
+.BR libsimple_strcaseeqlen (3),
 .BR strcasecmp (3)
diff --git a/man/libsimple_strcaseeqlen.3 b/man/libsimple_strcaseeqlen.3
new file mode 100644
index 0000000..6ff8e18
--- /dev/null
+++ b/man/libsimple_strcaseeqlen.3
@@ -0,0 +1,71 @@
+.TH LIBSIMPLE_STRCASEEQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_strcaseeqlen \- check initial commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_strcaseeqlen(const char *\fIa\fP, const char *\fIb\fP);
+
+#ifndef memrcaseeqlen
+# define memrcaseeqlen libsimple_strcaseeqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strcaseeqlen ()
+function scans the number of bytes the string
+.I a
+have in common the string
+.I b
+at their beginnings.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strcaseeqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their beginnings.
+.SH ERRORS
+The
+.BR libsimple_strcaseeqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_strcaseeqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strcaseeqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strcaseeqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_streqlen (3),
+.BR libsimple_strrcaseeqlen (3)
diff --git a/man/libsimple_strcaseeqnul.3 b/man/libsimple_strcaseeqnul.3
index ab06c67..17edb4b 100644
--- a/man/libsimple_strcaseeqnul.3
+++ b/man/libsimple_strcaseeqnul.3
@@ -11,7 +11,7 @@ static inline int libsimple_strcaseeqnul(const char *\fIa\fP, const char *\fIb\f
 # define strcaseeqnul libsimple_strcaseeqnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcasestarts.3 b/man/libsimple_strcasestarts.3
index 9b7081f..c36ac4a 100644
--- a/man/libsimple_strcasestarts.3
+++ b/man/libsimple_strcasestarts.3
@@ -11,7 +11,7 @@ static inline int libsimple_strcasestarts(const char *\fIs\fP, const char *\fIt\
 # define strcasestarts libsimple_strcasestarts
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcasestr.3 b/man/libsimple_strcasestr.3
index 346a17b..fe8c6bb 100644
--- a/man/libsimple_strcasestr.3
+++ b/man/libsimple_strcasestr.3
@@ -11,7 +11,7 @@ char *libsimple_strcasestr(const char *\fIhaystack\fP, const char *\fIneedle\fP)
 # define strcasestr libsimple_strcasestr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strchrnul.3 b/man/libsimple_strchrnul.3
index 8d8f53a..0ed76d9 100644
--- a/man/libsimple_strchrnul.3
+++ b/man/libsimple_strchrnul.3
@@ -11,7 +11,7 @@ char *libsimple_strchrnul(const char *\fIs\fP, int \fIc\fP);
 # define strchrnul libsimple_strchrnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strcmpnul.3 b/man/libsimple_strcmpnul.3
index 79c53bf..ea962d7 100644
--- a/man/libsimple_strcmpnul.3
+++ b/man/libsimple_strcmpnul.3
@@ -11,7 +11,7 @@ static inline int libsimple_strcmpnul(const char *\fIa\fP, const char *\fIb\fP);
 # define strcmpnul libsimple_strcmpnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strend.3 b/man/libsimple_strend.3
index 1ceb9ac..e1652b6 100644
--- a/man/libsimple_strend.3
+++ b/man/libsimple_strend.3
@@ -11,7 +11,7 @@ static inline char *libsimple_strend(const char *\fIs\fP);
 # define strend libsimple_strend
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strends.3 b/man/libsimple_strends.3
index abc7e5a..e7b9088 100644
--- a/man/libsimple_strends.3
+++ b/man/libsimple_strends.3
@@ -11,7 +11,7 @@ int libsimple_strends(const char *\fIs\fP, const char *\fIt\fP);
 # define strends libsimple_strends
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_streq.3 b/man/libsimple_streq.3
index f8d28fb..7904860 100644
--- a/man/libsimple_streq.3
+++ b/man/libsimple_streq.3
@@ -11,7 +11,7 @@ static inline int libsimple_streq(const char *\fIa\fP, const char *\fIb\fP);
 # define streq libsimple_streq
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
@@ -68,4 +68,6 @@ None.
 .SH SEE ALSO
 .BR libsimple_streqnul (3),
 .BR libsimple_strcaseeq (3),
+.BR libsimple_strcaseeq (3),
+.BR libsimple_streqlen (3),
 .BR strcmp (3)
diff --git a/man/libsimple_streqlen.3 b/man/libsimple_streqlen.3
new file mode 100644
index 0000000..78fee3e
--- /dev/null
+++ b/man/libsimple_streqlen.3
@@ -0,0 +1,71 @@
+.TH LIBSIMPLE_STREQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_streqlen \- check initial commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_streqlen(const char *\fIa\fP, const char *\fIb\fP);
+
+#ifndef memrcaseeqlen
+# define memrcaseeqlen libsimple_streqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_streqlen ()
+function scans the number of bytes the string
+.I a
+have in common the string
+.I b
+at their beginnings.
+.PP
+The comparison is case-sensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_streqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their beginnings.
+.SH ERRORS
+The
+.BR libsimple_streqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_streqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_streqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_streqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_strreqlen (3),
+.BR libsimple_strcaseeqlen (3)
diff --git a/man/libsimple_streqnul.3 b/man/libsimple_streqnul.3
index fa0a35e..df39a67 100644
--- a/man/libsimple_streqnul.3
+++ b/man/libsimple_streqnul.3
@@ -11,7 +11,7 @@ static inline int libsimple_streqnul(const char *\fIa\fP, const char *\fIb\fP);
 # define streqnul libsimple_streqnul
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strrcasechr.3 b/man/libsimple_strrcasechr.3
index 188bcd7..65382e6 100644
--- a/man/libsimple_strrcasechr.3
+++ b/man/libsimple_strrcasechr.3
@@ -11,7 +11,7 @@ char *libsimple_strrcasechr(const char *\fIs\fP, int \fIc\fP);
 # define strrcasechr libsimple_strrcasechr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strrcaseeqlen.3 b/man/libsimple_strrcaseeqlen.3
new file mode 100644
index 0000000..429393f
--- /dev/null
+++ b/man/libsimple_strrcaseeqlen.3
@@ -0,0 +1,71 @@
+.TH LIBSIMPLE_STRRCASEEQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_strrcaseeqlen \- check terminal commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_strrcaseeqlen(const char *\fIa\fP, const char *\fIb\fP);
+
+#ifndef strrcaseeqlen
+# define strrcaseeqlen libsimple_strrcaseeqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strrcaseeqlen ()
+function scans the number of bytes the string
+.I a
+have in common the string
+.I b
+at their ends.
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strrcaseeqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their ends.
+.SH ERRORS
+The
+.BR libsimple_strrcaseeqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_strrcaseeqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strrcaseeqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strrcaseeqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_strreqlen (3),
+.BR libsimple_strcaseeqlen (3)
diff --git a/man/libsimple_strrcasestr.3 b/man/libsimple_strrcasestr.3
index 3b277ae..4418795 100644
--- a/man/libsimple_strrcasestr.3
+++ b/man/libsimple_strrcasestr.3
@@ -11,7 +11,7 @@ char *libsimple_strrcasestr(const char *\fIhaystack\fP, const char *\fIneedle\fP
 # define strrcasestr libsimple_strrcasestr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strreqlen.3 b/man/libsimple_strreqlen.3
new file mode 100644
index 0000000..e64358d
--- /dev/null
+++ b/man/libsimple_strreqlen.3
@@ -0,0 +1,71 @@
+.TH LIBSIMPLE_STRREQLEN 3 2018-10-21 libsimple
+.SH NAME
+libsimple_strreqlen \- check terminal commonality
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+size_t libsimple_strreqlen(const char *\fIa\fP, const char *\fIb\fP);
+
+#ifndef strreqlen
+# define strreqlen libsimple_strreqlen
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strreqlen ()
+function scans the number of bytes the string
+.I a
+have in common the string
+.I b
+at their ends.
+.PP
+The comparison is case-sensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strreqlen ()
+function returns the number of bytes
+.I a
+and
+.I b
+have in common at their ends.
+.SH ERRORS
+The
+.BR libsimple_strreqlen ()
+function cannot fail.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR libsimple_strreqlen ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strreqlen ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strreqlen ()
+T}	Async-cancel safety	AC-Safe
+.TE
+.SH EXAMPLES
+None.
+.SH APPLICATION USAGE
+None.
+.SH RATIONALE
+None.
+.SH FUTURE DIRECTIONS
+None.
+.SH NOTES
+None.
+.SH BUGS
+None.
+.SH SEE ALSO
+.BR libsimple_strreqlen (3),
+.BR libsimple_streqlen (3)
diff --git a/man/libsimple_strrstr.3 b/man/libsimple_strrstr.3
index ad85a54..973f50b 100644
--- a/man/libsimple_strrstr.3
+++ b/man/libsimple_strrstr.3
@@ -11,7 +11,7 @@ char *libsimple_strrstr(const char *\fIhaystack\fP, const char *\fIneedle\fP);
 # define strrstr libsimple_strrstr
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_strstarts.3 b/man/libsimple_strstarts.3
index cf08967..c277f11 100644
--- a/man/libsimple_strstarts.3
+++ b/man/libsimple_strstarts.3
@@ -11,7 +11,7 @@ int libsimple_strstarts(const char *\fIs\fP, const char *\fIt\fP);
 # define strstarts libsimple_strstarts
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/libsimple_vputenvf.3 b/man/libsimple_vputenvf.3
index 3c081e1..db6858e 100644
--- a/man/libsimple_vputenvf.3
+++ b/man/libsimple_vputenvf.3
@@ -31,7 +31,7 @@ static inline void libsimple_eputenvf(const char *\fIfmt\fP, ...);
 # define eputenvf libsimple_eputenvf
 #endif
 .fi
-
+.PP
 Link with
 .IR \-lsimple .
 .SH DESCRIPTION
diff --git a/man/memcaseeqlen.3libsimple b/man/memcaseeqlen.3libsimple
new file mode 120000
index 0000000..5fa4167
--- /dev/null
+++ b/man/memcaseeqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_memcaseeqlen.3
\ No newline at end of file
diff --git a/man/memeqlen.3libsimple b/man/memeqlen.3libsimple
new file mode 120000
index 0000000..73567aa
--- /dev/null
+++ b/man/memeqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_memeqlen.3
\ No newline at end of file
diff --git a/man/memrcaseeqlen.3libsimple b/man/memrcaseeqlen.3libsimple
new file mode 120000
index 0000000..5f451d1
--- /dev/null
+++ b/man/memrcaseeqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_memrcaseeqlen.3
\ No newline at end of file
diff --git a/man/memreqlen.3libsimple b/man/memreqlen.3libsimple
new file mode 120000
index 0000000..fd637c4
--- /dev/null
+++ b/man/memreqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_memreqlen.3
\ No newline at end of file
diff --git a/man/strcaseeqlen.3libsimple b/man/strcaseeqlen.3libsimple
new file mode 120000
index 0000000..36f0971
--- /dev/null
+++ b/man/strcaseeqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_strcaseeqlen.3
\ No newline at end of file
diff --git a/man/streqlen.3libsimple b/man/streqlen.3libsimple
new file mode 120000
index 0000000..85b2736
--- /dev/null
+++ b/man/streqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_streqlen.3
\ No newline at end of file
diff --git a/man/strrcaseeqlen.3libsimple b/man/strrcaseeqlen.3libsimple
new file mode 120000
index 0000000..698634c
--- /dev/null
+++ b/man/strrcaseeqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_strrcaseeqlen.3
\ No newline at end of file
diff --git a/man/strreqlen.3libsimple b/man/strreqlen.3libsimple
new file mode 120000
index 0000000..0be1d93
--- /dev/null
+++ b/man/strreqlen.3libsimple
@@ -0,0 +1 @@
+libsimple_strreqlen.3
\ No newline at end of file