mirror of https://github.com/svaarala/duktape.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
795 B
41 lines
795 B
/*
|
|
* Try different format string lengths.
|
|
*/
|
|
|
|
/*===
|
|
length sum: 2147713027.000000
|
|
===*/
|
|
|
|
void test(duk_context *ctx) {
|
|
char buf[65536 + 1024];
|
|
int fmt_len, i;
|
|
double len_sum = 0.0;
|
|
|
|
for (fmt_len = 0;
|
|
fmt_len <= 65536;
|
|
fmt_len ++) {
|
|
for (i = 0; i < fmt_len; i++) {
|
|
buf[i] = 'x';
|
|
}
|
|
buf[fmt_len + 0] = '%';
|
|
buf[fmt_len + 1] = 'd';
|
|
buf[fmt_len + 2] = '\0';
|
|
|
|
duk_push_sprintf(ctx, buf, 123);
|
|
len_sum += (double) duk_get_length(ctx, -1); /* trivial "checksum" */
|
|
duk_pop(ctx);
|
|
}
|
|
|
|
/* Length sequence is 3, 4, ..., 65539 ->
|
|
* (65539 + 3)/2 * (65539 - 3 + 1) = 2147713027
|
|
*
|
|
* >>> res = 0
|
|
* >>> for i in xrange(0, 65536+1):
|
|
* ... res += len( (('x' * i) + '%d') % 123 )
|
|
* ...
|
|
* >>> res
|
|
* 2147713027
|
|
*/
|
|
|
|
printf("length sum: %lf\n", len_sum);
|
|
}
|
|
|