Python(2.5) reads an input file FASTER than pure C(Mingw)
SL
ni at hao.com
Sun Apr 27 05:47:27 EDT 2008
Have you tried this now?
> First try again with pure C code and compile with a C compiler, not
> with C++ code and C++ compiler.
> Then, tweak the code to use more buffering, to make it more similar
> to readline code, like this (not tested):
> #include <stdio.h>
> #include <time.h>
> char vs[1002000][100];
> char buffer[65536];
> int main(void) {
> FILE *fp;
> int i, m;
> clock_t begin, end;
> double t;
> begin = clock();
> fp = fopen("cvspython.txt", "r");
> i = 0;
> setvbuf(fp, buffer, _IOFBF, sizeof(buffer));
> while(1) {
> if(!fgets(vs[i], 100, fp)) break;
> ++i;
> }
> fclose(fp);
> printf("%d\n", i);
> end = clock();
> t = (double)(end - begin)/CLOCKS_PER_SEC;
> printf("%g\n", t);
> scanf("%d", &m);
> printf("%s\n", vs[m]);
> getchar();
> return 0;
> }
> Finally, repeat your statement again, if necessary.
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