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https://github.com/darlinghq/darling-libobjc2.git
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bc87ed22e1
ARC functions are all now exposed in a header, but not yet documented. See the ARC ABI spec for now: http://clang.llvm.org/docs/AutomaticReferenceCounting.html#runtime
35 lines
536 B
C
35 lines
536 B
C
#include <string.h>
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#include <stdint.h>
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/**
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* Efficient string hash function.
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*/
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__attribute__((unused))
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static uint32_t string_hash(const char *str)
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{
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uint32_t hash = 0;
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int32_t c;
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while ((c = *str++))
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{
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hash = c + (hash << 6) + (hash << 16) - hash;
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}
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return hash;
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}
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/**
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* Test two strings for equality.
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*/
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__attribute__((unused))
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static int string_compare(const char *str1, const char *str2)
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{
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if (str1 == str2)
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{
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return 1;
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}
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if (str1 == NULL || str2 == NULL)
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{
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return 0;
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}
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return strcmp(str1, str2) == 0;
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}
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