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author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1999-10-13 06:44:42 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1999-10-13 06:44:42 +0000 |
commit | 2e23ebc601fd5c8d7de232e470e2374df8888d11 (patch) | |
tree | 15b69a971374cd5d1fd5413ba6d9d659f56c27f0 /io.c | |
parent | be1fea072cd0d22788ef8a931c0c6b64a2503b5d (diff) |
*** empty log message ***
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@540 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -482,11 +482,15 @@ io_read(argc, argv, io) } len = NUM2INT(length); + if (len < 0) { + rb_raise(rb_eArgError, "negative length %d given", len); + } GetOpenFile(io, fptr); rb_io_check_readable(fptr); if (feof(fptr->f)) return Qnil; str = rb_str_new(0, len); + if (len == 0) return str; READ_CHECK(fptr->f); n = io_fread(RSTRING(str)->ptr, len, fptr->f); |