Avoid comparing pointers and integers

49bba6c9 · dearblue · e2ac2a82 · 49bba6c9
Commit 49bba6c9 authored Apr 29, 2020 by dearblue
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mrbgems/mruby-io/src/io.c mrbgems/mruby-io/src/io.c +1 -1

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--- a/mrbgems/mruby-io/src/io.c
+++ b/mrbgems/mruby-io/src/io.c
@@ -1493,7 +1493,7 @@ mrb_io_readchar(mrb_state *mrb, mrb_value self)
 #endif
  mrb_get_args(mrb, "S", &buf);
-  mrb_assert(RSTRING_PTR(buf) > 0);
+  mrb_assert(RSTRING_PTR(buf) != NULL);
  mrb_str_modify(mrb, RSTRING(buf));
 #ifdef MRB_UTF8_STRING
  c = RSTRING_PTR(buf)[0];