jscript: Optimized concatenation of empty strings.
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@ -72,15 +72,18 @@ jsstr_t *jsstr_concat(jsstr_t *str1, jsstr_t *str2)
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jsstr_t *ret;
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len1 = jsstr_length(str1);
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if(!len1)
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return jsstr_addref(str2);
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len2 = jsstr_length(str2);
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if(!len2)
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return jsstr_addref(str1);
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ret = jsstr_alloc_buf(len1+len2);
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if(!ret)
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return NULL;
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if(len1)
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memcpy(ret->str, str1->str, len1*sizeof(WCHAR));
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if(len2)
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memcpy(ret->str+len1, str2->str, len2*sizeof(WCHAR));
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return ret;
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}
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