ref: b2296200820c15871d0b848553d31280875ed126
dir: /libmp/letomp.c/
#include "os.h" #include <mp.h> #include "dat.h" // convert a little endian byte array (least significant byte first) to an mpint mpint* letomp(uchar *s, uint n, mpint *b) { int i=0, m = 0; mpdigit x=0; if(b == nil) b = mpnew(0); mpbits(b, 8*n); b->top = DIGITS(8*n); for(; n > 0; n--){ x |= ((mpdigit)(*s++)) << i; i += 8; if(i == Dbits){ b->p[m++] = x; i = 0; x = 0; } } if(i > 0) b->p[m++] = x; b->top = m; return b; }