ref: 909323e92a4e694bff5908e500d8655ac1bbd932
dir: /sys/src/libmp/port/mpcmp.c/
#include "os.h" #include <mp.h> #include "dat.h" // return neg, 0, pos as abs(b1)-abs(b2) is neg, 0, pos int mpmagcmp(mpint *b1, mpint *b2) { int i; i = b1->flags | b2->flags; if(i & MPtimesafe) return mpvectscmp(b1->p, b1->top, b2->p, b2->top); if(i & MPnorm){ i = b1->top - b2->top; if(i) return i; } return mpveccmp(b1->p, b1->top, b2->p, b2->top); } // return neg, 0, pos as b1-b2 is neg, 0, pos int mpcmp(mpint *b1, mpint *b2) { int sign; sign = (b1->sign - b2->sign) >> 1; // -1, 0, 1 return sign | (sign&1)-1 & mpmagcmp(b1, b2)*b1->sign; }