Funny (NOT!) piece of C strangeness.

[Kevin]

Ha, victory is mine!

Code: Select all

/* tyndur libc

sscanf:  Returned 0, result -1, consumed -1
fscanf:  Returned 0, result -1, consumed -1, next z
strtoul:             result  0, consumed 2

sscanf:  Returned 0, result -1, consumed -1
fscanf:  Returned 0, result -1, consumed -1, next z
strtoul:             result  0, consumed 2
*/

This is the result of the scanf implementation I did a few days ago. "next z" is the result of an additional fgetc after fscanf. I think these results match exactly what you describe.