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#include <string>
#include <iostream>
#include <chrono>
#include <stc/crand.h>
#include <stc/cstr.h>
#define i_type StcVec
#define i_val_str
#include <stc/cstack.h>
#define i_type StcSet
#define i_val_str
#include <stc/csset.h>
#include <vector>
using StdVec = std::vector<std::string>;
#include <set>
using StdSet = std::set<std::string>;
static const int BENCHMARK_SIZE = 2000000;
static const int MAX_STRING_SIZE = 50;
static const char CHARS[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz=+-";
using time_point = std::chrono::high_resolution_clock::time_point;
static inline std::string randomString_STD(int strsize) {
std::string s(strsize, 0);
char* p = &s[0];
union { uint64_t u8; uint8_t b[8]; } r;
for (int i = 0; i < strsize; ++i) {
if ((i & 7) == 0) r.u8 = crand() & 0x3f3f3f3f3f3f3f3f;
p[i] = CHARS[r.b[i & 7]];
}
return s;
}
static inline cstr randomString_STC(int strsize) {
cstr s = cstr_with_size(strsize, 0);
char* p = cstr_data(&s);
union { uint64_t u8; uint8_t b[8]; } r;
for (int i = 0; i < strsize; ++i) {
if ((i & 7) == 0) r.u8 = crand() & 0x3f3f3f3f3f3f3f3f;
p[i] = CHARS[r.b[i & 7]];
}
return s;
}
void addRandomString(StdVec& vec, int strsize) {
vec.push_back(std::move(randomString_STD(strsize)));
}
void addRandomString(StcVec& vec, int strsize) {
StcVec_push(&vec, randomString_STC(strsize));
}
void addRandomString(StdSet& set, int strsize) {
set.insert(std::move(randomString_STD(strsize)));
}
void addRandomString(StcSet& set, int strsize) {
StcSet_insert(&set, randomString_STC(strsize));
}
template <class C>
int benchmark(C& container, const int n, const int strsize) {
time_point t1 = std::chrono::high_resolution_clock::now();
for (int i = 0; i < n; i++)
addRandomString(container, strsize);
time_point t2 = std::chrono::high_resolution_clock::now();
const auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(t2 - t1).count();
std::cerr << (strsize ? strsize : 32) << "\t" << duration;
return (int)duration;
}
int main() {
uint64_t seed = 4321;
int sum, n;
// VECTOR WITH STRINGS
csrand(seed);
sum = 0, n = 0;
std::cerr << "\nstrsize\tmsecs\tstd::vector<std::string>, size=" << BENCHMARK_SIZE << "\n";
for (int strsize = 1; strsize <= MAX_STRING_SIZE; strsize += 2) {
StdVec vec; vec.reserve(BENCHMARK_SIZE);
sum += benchmark(vec, BENCHMARK_SIZE, strsize), ++n;
std::cout << '\t' << vec.front() << '\n';
}
std::cout << "Avg:\t" << sum/n << '\n';
csrand(seed);
sum = 0, n = 0;
std::cerr << "\nstrsize\tmsecs\tcvec<cstr>, size=" << BENCHMARK_SIZE << "\n";
for (int strsize = 1; strsize <= MAX_STRING_SIZE; strsize += 2) {
StcVec vec = StcVec_with_capacity(BENCHMARK_SIZE);
sum += benchmark(vec, BENCHMARK_SIZE, strsize), ++n;
std::cout << '\t' << cstr_str(&vec.data[0]) << '\n';
StcVec_drop(&vec);
}
std::cout << "Avg:\t" << sum/n << '\n';
// SORTED SET WITH STRINGS
csrand(seed);
sum = 0, n = 0;
std::cerr << "\nstrsize\tmsecs\tstd::set<std::string>, size=" << BENCHMARK_SIZE/16 << "\n";
for (int strsize = 1; strsize <= MAX_STRING_SIZE; strsize += 2) {
StdSet set;
sum += benchmark(set, BENCHMARK_SIZE/16, strsize), ++n;
std::cout << '\t' << *set.begin() << '\n';
}
std::cout << "Avg:\t" << sum/n << '\n';
csrand(seed);
sum = 0, n = 0;
std::cerr << "\nstrsize\tmsecs\tcsset<cstr>, size=" << BENCHMARK_SIZE/16 << "\n";
for (int strsize = 1; strsize <= MAX_STRING_SIZE; strsize += 2) {
StcSet set = StcSet_with_capacity(BENCHMARK_SIZE/16);
sum += benchmark(set, BENCHMARK_SIZE/16, strsize), ++n;
std::cout << '\t' << cstr_str(StcSet_front(&set)) << '\n';
StcSet_drop(&set);
}
std::cout << "Avg:\t" << sum/n << '\n';
std::cerr << "sizeof(std::string) : " << sizeof(std::string) << std::endl
<< "sizeof(cstr) : " << sizeof(cstr) << std::endl;
return 0;
}
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