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: / usr / share / nodejs / imurmurhash /
Filename : imurmurhash.min.js
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(function(){var cache;function MurmurHash3(key,seed){var m=this instanceof MurmurHash3?this:cache;m.reset(seed);if(typeof key==="string"&&key.length>0){m.hash(key)}if(m!==this){return m}}MurmurHash3.prototype.hash=function(key){var h1,k1,i,top,len;len=key.length;this.len+=len;k1=this.k1;i=0;switch(this.rem){case 0:k1^=len>i?key.charCodeAt(i++)&65535:0;case 1:k1^=len>i?(key.charCodeAt(i++)&65535)<<8:0;case 2:k1^=len>i?(key.charCodeAt(i++)&65535)<<16:0;case 3:k1^=len>i?(key.charCodeAt(i)&255)<<24:0;k1^=len>i?(key.charCodeAt(i++)&65280)>>8:0}this.rem=len+this.rem&3;len-=this.rem;if(len>0){h1=this.h1;while(1){k1=k1*11601+(k1&65535)*3432906752&4294967295;k1=k1<<15|k1>>>17;k1=k1*13715+(k1&65535)*461832192&4294967295;h1^=k1;h1=h1<<13|h1>>>19;h1=h1*5+3864292196&4294967295;if(i>=len){break}k1=key.charCodeAt(i++)&65535^(key.charCodeAt(i++)&65535)<<8^(key.charCodeAt(i++)&65535)<<16;top=key.charCodeAt(i++);k1^=(top&255)<<24^(top&65280)>>8}k1=0;switch(this.rem){case 3:k1^=(key.charCodeAt(i+2)&65535)<<16;case 2:k1^=(key.charCodeAt(i+1)&65535)<<8;case 1:k1^=key.charCodeAt(i)&65535}this.h1=h1}this.k1=k1;return this};MurmurHash3.prototype.result=function(){var k1,h1;k1=this.k1;h1=this.h1;if(k1>0){k1=k1*11601+(k1&65535)*3432906752&4294967295;k1=k1<<15|k1>>>17;k1=k1*13715+(k1&65535)*461832192&4294967295;h1^=k1}h1^=this.len;h1^=h1>>>16;h1=h1*51819+(h1&65535)*2246770688&4294967295;h1^=h1>>>13;h1=h1*44597+(h1&65535)*3266445312&4294967295;h1^=h1>>>16;return h1>>>0};MurmurHash3.prototype.reset=function(seed){this.h1=typeof seed==="number"?seed:0;this.rem=this.k1=this.len=0;return this};cache=new MurmurHash3;if(typeof module!="undefined"){module.exports=MurmurHash3}else{this.MurmurHash3=MurmurHash3}})();