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Roberto Ierusalimschy 2002-01-30 15:28:05 -02:00
parent 653977a0ac
commit f856fdeabd
1 changed files with 4 additions and 4 deletions
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lobject.c
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@ -35,14 +35,14 @@ int luaO_log2 (unsigned int x) {
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}; };
if (x & 0xffff0000) { if (x >= 0x00010000) {
if (x & 0xff000000) return log_8[((x>>24) & 0xff) - 1]+24; if (x >= 0x01000000) return log_8[((x>>24) & 0xff) - 1]+24;
else return log_8[((x>>16) & 0xff) - 1]+16; else return log_8[((x>>16) & 0xff) - 1]+16;
} }
else { else {
if (x & 0x0000ff00) return log_8[((x>>8) & 0xff) - 1]+8; if (x >= 0x00000100) return log_8[((x>>8) & 0xff) - 1]+8;
else if (x) return log_8[(x & 0xff) - 1]; else if (x) return log_8[(x & 0xff) - 1];
return -1; /* special `log' for 0 */ return -1; /* special `log' for 0 */
} }