diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-09 09:16:59 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-09 09:16:59 +0000 |
| commit | 067d9e9ce97dd42b8b13eef10031b0fa9cf23a1f (patch) | |
| tree | 934f07816670ae9286f399b18f9b8b78c495bc16 /ext | |
| parent | 6c3c48e3d569a40774a14a5bfbebf3fc72874de0 (diff) | |
sprintf.c: NULL as str
* sprintf.c (ruby_vsnprintf, ruby_snprintf): allow NULL as str,
just count the expected buffer size.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/-test-/printf/printf.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ext/-test-/printf/printf.c b/ext/-test-/printf/printf.c index 666f5592e5..e793bb7a48 100644 --- a/ext/-test-/printf/printf.c +++ b/ext/-test-/printf/printf.c @@ -90,6 +90,13 @@ printf_test_call(int argc, VALUE *argv, VALUE self) return rb_assoc_new(result, rb_usascii_str_new_cstr(format)); } +static VALUE +snprintf_count(VALUE self, VALUE str) +{ + int n = ruby_snprintf(NULL, 0, "%s", StringValueCStr(str)); + return INT2FIX(n); +} + void Init_printf(void) { @@ -98,4 +105,5 @@ Init_printf(void) rb_define_singleton_method(m, "v", printf_test_v, 1); rb_define_singleton_method(m, "q", printf_test_q, 1); rb_define_singleton_method(m, "call", printf_test_call, -1); + rb_define_singleton_method(m, "sncount", snprintf_count, 1); } |