module MurmurHash3::V32
Public Instance Methods
murmur3_32_fmix(p1)
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end of MurmurHash3 algorithm
static VALUE rb_fmix32(VALUE self, VALUE integer) { uint32_t _int = NUM2UINT(integer); return UINT2NUM(fmix32(_int)); }
murmur3_32_int32_hash(*args)
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static VALUE rb_murmur3_32_int32_hash(int argc, VALUE* argv, VALUE self) { uint32_t _int; uint32_t result; if (argc == 0 || argc > 2) { rb_raise(rb_eArgError, "accept 1 or 2 arguments: (int32[, seed])"); } _int = NUM2UINT(argv[0]); result = MurmurHash3_x86_32(&_int, 4, argc == 1 ? 0 : NUM2UINT(argv[1])); return UINT2NUM(result); }
murmur3_32_int64_hash(*args)
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static VALUE rb_murmur3_32_int64_hash(int argc, VALUE* argv, VALUE self) { uint64_t _int; uint32_t result; if (argc == 0 || argc > 2) { rb_raise(rb_eArgError, "accept 1 or 2 arguments: (int64[, seed])"); } #if SIZEOF_LONG == 8 _int = NUM2ULONG(argv[0]); #else _int = NUM2ULL(argv[0]); #endif result = MurmurHash3_x86_32(&_int, 8, argc == 1 ? 0 : NUM2UINT(argv[1])); return UINT2NUM(result); }
murmur3_32_str_base64digest(*args)
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static VALUE rb_murmur3_32_str_base64digest(int argc, VALUE *argv, VALUE self) { union { uint32_t result; unsigned char res[6]; } r; char out[8]; int i; r.result = rb_murmur3_32_hash(argc, argv, self); #if WORDS_BIGENDIAN SWAP_32_INT(r.result); #endif r.res[4] = 0; r.res[5] = 0; for(i = 0; i<2; i++) { uint32_t b64 = ((uint32_t)r.res[i*3+0] << 16) | ((uint32_t)r.res[i*3+1] << 8) | (uint32_t)r.res[i*3+2]; out[i*4+0] = base64[(b64 >> 18) & 0x3f]; out[i*4+1] = base64[(b64 >> 12) & 0x3f]; out[i*4+2] = base64[(b64 >> 6) & 0x3f]; out[i*4+3] = base64[(b64 >> 0) & 0x3f]; } out[6] = '='; out[7] = '='; return rb_str_new(out, sizeof(out)); }
murmur3_32_str_digest(*args)
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static VALUE rb_murmur3_32_str_digest(int argc, VALUE* argv, VALUE self) { union { uint32_t result; char res[4]; } r; r.result = rb_murmur3_32_hash(argc, argv, self); #if WORDS_BIGENDIAN SWAP_32_INT(r.result); #endif return rb_str_new(r.res, 4); }
murmur3_32_str_hash(*args)
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static VALUE rb_murmur3_32_str_hash(int argc, VALUE* argv, VALUE self) { return UINT2NUM(rb_murmur3_32_hash(argc, argv, self)); }
murmur3_32_str_hexdigest(*args)
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static VALUE rb_murmur3_32_str_hexdigest(int argc, VALUE* argv, VALUE self) { union { uint32_t result; unsigned char res[4]; } r; char out[8]; int i; r.result = rb_murmur3_32_hash(argc, argv, self); #if WORDS_BIGENDIAN SWAP_32_INT(r.result); #endif for(i = 0; i<4; i++) { out[i*2] = hex[r.res[i]*2]; out[i*2+1] = hex[r.res[i]*2+1]; } return rb_str_new(out, 8); }