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28 lines
481 B
C

#undef __dietlibc__
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#include "str.h"
size_t str_len(const char* in) {
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register const char* t=in;
for (;;) {
if (!*t) break;
++t;
if (!*t) break;
++t;
if (!*t) break;
++t;
if (!*t) break;
++t;
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}
return (size_t)(t-in);
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}
#ifdef UNITTEST
#include <assert.h>
int main() {
assert(str_len("foo")==3);
assert(str_len("")==0);
assert(str_len("fnord")==5);
return 0;
}
#endif