#include <stdlib.h>
#include <string.h>
#include <stdio.h>

// It's base. NUL terminator.
int nulTerm = 1;

// -------------------------------------
// BASE - String and init of this
// -------------------------------------
typedef char* string;
string strInit(char* s) {
	string str = malloc(strlen(s) + nulTerm);
	strcpy(str, s);
	return str;
}
void strResize(string* s, int new_size) {
	*s = realloc(*s, new_size + nulTerm);
}
// -------------- END ------------------



// -------------------------------------
// FUNCTION - basic operations
// -------------------------------------
void strAdd(string* s, char* str_new) {
	*s = realloc(*s, strlen(*s) + strlen(str_new) + nulTerm);
	strcat(*s, str_new);
}
void strSet(string* s, char* str_new) {
	*s = realloc(*s, strlen(str_new) + nulTerm);
	strcpy(*s, str_new);
}
void strCopy(string* dst, string* src) {
	strcpy(*dst, *src);
}
// -------------- END ------------------



// -------------------------------------
// CONVERT - different convert to str
// -------------------------------------
int numLen(double num) {
    return snprintf(NULL, 0, "%lf", num);
}

char* int2Str(int* num) {
    char* buffer = malloc(numLen(*num) + nulTerm);
    sprintf(buffer, "%d", *num);
    return buffer;
}
char* float2Str(float* num) {
    char* buffer = malloc(numLen(*num) + nulTerm);
    sprintf(buffer, "%f", *num);
    return buffer;
}
char* double2Str(double* num) {
    char* buffer = malloc(numLen(*num) + nulTerm);
    sprintf(buffer, "%lf", *num);
    return buffer;
}
// -------------- END ------------------