diff options
Diffstat (limited to 'unix/boot/spp/rpp/ratlibr/strcmp.r')
| -rw-r--r-- | unix/boot/spp/rpp/ratlibr/strcmp.r | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/unix/boot/spp/rpp/ratlibr/strcmp.r b/unix/boot/spp/rpp/ratlibr/strcmp.r new file mode 100644 index 00000000..9bc12c6a --- /dev/null +++ b/unix/boot/spp/rpp/ratlibr/strcmp.r @@ -0,0 +1,24 @@ +include defs + +# strcmp - compare 2 strings; return -1 if <, 0 if =, +1 if > + + integer function strcmp (str1, str2) + character str1 (ARB), str2 (ARB) + + integer i + + for (i = 1; str1 (i) == str2 (i); i = i + 1) + if (str1 (i) == EOS) + return (0) + + if (str1 (i) == EOS) + strcmp = -1 + else if (str2 (i) == EOS) + strcmp = + 1 + else if (str1 (i) < str2 (i)) + strcmp = -1 + else + strcmp = +1 + + return + end |