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