4 ms·
You can allocate the string with one malloc: RString *s = malloc(sizeof(RString) + length); /* allocate 'length' bytes extra memory past the end of 's' */
by ori_b 15y ago
You can allocate the string with one malloc:
RString *s = malloc(sizeof(RString) + length); /* allocate 'length' bytes extra memory past the end of 's' */
s->data = s + 1; /* to the extra memory past the start of the string struct */
- teaspoon 15y agoRuby strings are mutable, so you need to be able to free s->data without freeing the RString itself.
- ori_b 15y agos = realloc(s, sizeof(RString));
- charliesome 15y agoMRI objects are not relocatable so that won't work if realloc has to move the structure in memory
- dchest 15y agoNitpick: sizeof(RString) + length may overflow size_t.