Fastest way to convert binary to decimal?

Question

I\'ve got four unsigned 32-bit integers representing an unsigned 128-bit integer, in little endian order:

typedef struct {
    unsigned int part[4];
} bigint         


        

Answer 1

The most immediate speedup will come from inlining the conversion rather than calling functions; it could be as simple as marking bigint_divmod10() inline, or using profile-guided optimisation as offered by your compiler.