diff options
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -165,6 +165,9 @@ VALUE rb_cSymbol; #define SHARABLE_SUBSTRING_P(beg, len, end) 1 #endif +#define STR_EMBEDABLE_P(len, termlen) \ + ((len) <= RSTRING_EMBED_LEN_MAX + 1 - (termlen)) + static VALUE str_replace_shared_without_enc(VALUE str2, VALUE str); static VALUE str_new_shared(VALUE klass, VALUE str); static VALUE str_new_frozen(VALUE klass, VALUE orig); @@ -1068,7 +1071,7 @@ str_replace_shared_without_enc(VALUE str2, VALUE str) long len; RSTRING_GETMEM(str, ptr, len); - if (len+termlen <= RSTRING_EMBED_LEN_MAX+1) { + if (STR_EMBEDABLE_P(len, termlen)) { char *ptr2 = RSTRING(str2)->as.ary; STR_SET_EMBED(str2); memcpy(ptr2, RSTRING_PTR(str), len); @@ -2524,14 +2527,14 @@ rb_str_resize(VALUE str, long len) const int termlen = TERM_LEN(str); if (STR_EMBED_P(str)) { if (len == slen) return str; - if (len + termlen <= RSTRING_EMBED_LEN_MAX + 1) { + if (STR_EMBEDABLE_P(len, termlen)) { STR_SET_EMBED_LEN(str, len); TERM_FILL(RSTRING(str)->as.ary + len, termlen); return str; } str_make_independent_expand(str, slen, len - slen, termlen); } - else if (len + termlen <= RSTRING_EMBED_LEN_MAX + 1) { + else if (STR_EMBEDABLE_P(len, termlen)) { char *ptr = STR_HEAP_PTR(str); STR_SET_EMBED(str); if (slen > len) slen = len; |