59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
// etlProbe.cpp - exercise ETL: vector + string + map + optional + function.
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//
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// $025010 = 0xBEEF main entered
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// $025002 = sum of vector [1..5] = 15
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// $025004 = vector size = 5
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// $025006 = string size = 10 ("Hello, ETL")
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// $025010 = (already 0xBEEF) main entered
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// $025020 = map size after 3 inserts = 3
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// $025022 = map lookup map[2] = 200
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// $025030 = optional has_value() = 1 after assignment
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// $025032 = optional value = 0x4242
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// $025040 = function-wrapped lambda result = 42 * 2 = 84
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// $025008 = 0x900D end reached
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#include <stdint.h>
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#include "etl/vector.h"
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#include "etl/string.h"
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#include "etl/map.h"
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#include "etl/optional.h"
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#include "etl/delegate.h"
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static int doubler(int x) { return x * 2; }
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int main(void) {
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*(volatile uint16_t *)0x025010UL = 0xBEEF;
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// vector
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etl::vector<int, 8> v;
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for (int i = 1; i <= 5; i++) v.push_back(i);
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int sum = 0;
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for (etl::vector<int, 8>::const_iterator it = v.begin(); it != v.end(); ++it) sum += *it;
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*(volatile uint16_t *)0x025002UL = (uint16_t)sum;
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*(volatile uint16_t *)0x025004UL = (uint16_t)v.size();
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// string
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etl::string<32> s("Hello, ");
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s += "ETL";
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*(volatile uint16_t *)0x025006UL = (uint16_t)s.size();
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// map
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etl::map<int, int, 8> m;
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m[1] = 100;
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m[2] = 200;
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m[3] = 300;
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*(volatile uint16_t *)0x025020UL = (uint16_t)m.size();
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*(volatile uint16_t *)0x025022UL = (uint16_t)m[2];
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// optional
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etl::optional<int> opt;
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opt = 0x4242;
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*(volatile uint16_t *)0x025030UL = (uint16_t)(opt.has_value() ? 1 : 0);
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*(volatile uint16_t *)0x025032UL = (uint16_t)opt.value();
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// function — type-erased callable, holding a free function pointer
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etl::delegate<int(int)> fn = etl::delegate<int(int)>::create<doubler>();
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*(volatile uint16_t *)0x025040UL = (uint16_t)fn(42);
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*(volatile uint16_t *)0x025008UL = 0x900D;
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return 0;
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}
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