How do I trim leading/trailing whitespace in a standard way?

Question

Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I\'d roll my own, but I would think this is a common problem wit

Answer 1

Just to keep this growing, one more option with a modifiable string:

void trimString(char *string)
{
    size_t i = 0, j = strlen(string);
    while (j > 0 && isspace((unsigned char)string[j - 1])) string[--j] = '\0';
    while (isspace((unsigned char)string[i])) i++;
    if (i > 0) memmove(string, string + i, j - i + 1);
}