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#include "common.h"
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
static size_t file_size(FILE* fd, size_t s) {
char buf[1024];
size_t x = fread(buf, sizeof(char), 1024, fd);
if (x < 1024) {
return x + s;
}
else {
return file_size(fd, x + s);
}
}
line_view load_file(const char* path) {
FILE* fd = fopen(path, "r");
if (fd == nullptr) {
return {nullptr, size_t(0)};
}
size_t size = file_size(fd, 0);
// printf("%s has size[%zu]\n", path, size);
fseek(fd, 0, SEEK_SET);
char* ptr = (char *) malloc(size);
size_t x = fread(ptr, sizeof(char), size, fd);
assert(x == size);
fclose(fd);
return {ptr, size};
}
line_view next_line(line_view file, size_t* offset) {
const char* p1 = file.line + *offset;
const char* p2 = p1;
const char* end = file.line + file.length;
while (p2 < end && *p2 != '\n') {
p2++;
}
*offset = p2 - file.line + 1;
return {p1, static_cast<size_t>(p2 - p1 + 1)};
}
bool is_repeated(const char* p1, const char* p2) {
char c = *p1;
while (p1 != p2) {
if (*p1 != c) {
return false;
}
p1++;
}
return true;
}
int gcd(int a, int b)
{
if (a == 0)
return b;
return gcd(b % a, a);
}
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