Some signed/unsigned comparison and conversions

* libguile/ports.c (scm_lfwrite_str, scm_lfwrite_substr): signed/unsigned
  conversion and comparison

* libguile/strings.c (scm_string_append): signed/unsigned comparison

2 files changed, 3 insertions, 3 deletions

diff --git a/libguile/ports.c b/libguile/ports.c
index 4ed5f76d7..f51ab0032 100644
--- a/libguile/ports.c
+++ b/libguile/ports.c
@@ -1019,7 +1019,7 @@ scm_lfwrite_substr (SCM str, size_t start, size_t end, SCM port)
   if (pt->rw_active == SCM_PORT_READ)
     scm_end_input (port);
 
-  if (end == -1)
+  if (end == (size_t) (-1))
     end = size;
   size = end - start;
 
@@ -1042,7 +1042,7 @@ scm_lfwrite_substr (SCM str, size_t start, size_t end, SCM port)
 void
 scm_lfwrite_str (SCM str, SCM port)
 {
-  scm_lfwrite_substr (str, 0, -1, port);
+  scm_lfwrite_substr (str, 0, (size_t) (-1), port);
 }
 
 /* scm_c_read
diff --git a/libguile/strings.c b/libguile/strings.c
index 74cebd69b..2e766c28c 100644
--- a/libguile/strings.c
+++ b/libguile/strings.c
@@ -1297,7 +1297,7 @@ SCM_DEFINE (scm_string_append, "string-append", 0, 0, 1,
   size_t len = 0;
   int wide = 0;
   SCM l, s;
-  int i;
+  size_t i;
   union
   {
     char *narrow;