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-rw-r--r--newlib/libc/string/strrchr.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/newlib/libc/string/strrchr.c b/newlib/libc/string/strrchr.c
new file mode 100644
index 00000000000..65160f55eed
--- /dev/null
+++ b/newlib/libc/string/strrchr.c
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+/*
+FUNCTION
+ <<strrchr>>---reverse search for character in string
+
+INDEX
+ strrchr
+
+ANSI_SYNOPSIS
+ #include <string.h>
+ char * strrchr(const char *<[string]>, int <[c]>);
+
+TRAD_SYNOPSIS
+ #include <string.h>
+ char * strrchr(<[string]>, <[c]>);
+ char *<[string]>;
+ int *<[c]>;
+
+DESCRIPTION
+ This function finds the last occurence of <[c]> (converted to
+ a char) in the string pointed to by <[string]> (including the
+ terminating null character).
+
+RETURNS
+ Returns a pointer to the located character, or a null pointer
+ if <[c]> does not occur in <[string]>.
+
+PORTABILITY
+<<strrchr>> is ANSI C.
+
+<<strrchr>> requires no supporting OS subroutines.
+
+QUICKREF
+ strrchr ansi pure
+*/
+
+#include <string.h>
+
+char *
+_DEFUN (strrchr, (s, i),
+ _CONST char *s _AND
+ int i)
+{
+ _CONST char *last = NULL;
+ char c = i;
+
+ while (*s)
+ {
+ if (*s == c)
+ {
+ last = s;
+ }
+ s++;
+ }
+
+ if (*s == c)
+ {
+ last = s;
+ }
+
+ return (char *) last;
+}