Function asSpan

tests/fl/net/http/chunked_encoding.cpp:7–9

Helper: wrap a C string as a span for feed()

// Helper: wrap a C string as a span for feed()
static fl::span<const uint8_t> asSpan(const char* s, size_t len) {
    return fl::span<const uint8_t>(reinterpret_cast<const uint8_t*>(s), len); // ok reinterpret cast
}
static fl::span<const uint8_t> asSpan(const char* s) {
    return asSpan(s, fl::strlen(s));
}