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-rw-r--r--include/ruby/encoding.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/ruby/encoding.h b/include/ruby/encoding.h
index a800f5427..6924e955a 100644
--- a/include/ruby/encoding.h
+++ b/include/ruby/encoding.h
@@ -77,6 +77,9 @@ int rb_enc_precise_mbclen(const char*, const char *, rb_encoding*);
#define MBCLEN_INVALID(ret) ONIGENC_MBCLEN_INVALID(ret)
#define MBCLEN_NEEDMORE(ret) ONIGENC_MBCLEN_NEEDMORE(ret)
+/* ptr,endptr,encoding -> 0x00..0x7f, -1 */
+int rb_enc_get_ascii(const char*, const char *, rb_encoding*);
+
/* code,encoding -> codelen */
int rb_enc_codelen(int, rb_encoding*);