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

int main()
{
	char buffer[256];
	printf("Enter: ");
	fgets(buffer, 256, stdin);
	float n1 = atof(buffer);
	printf("Using atof: %f\n", n1);
	int n2 = atoi(buffer);
	printf("Using atoi: %d\n", n2);
	long n3 = atol(buffer);
	printf("Using atol: %ld\n", n3);
	double n4 = strtod(buffer, NULL);
	printf("Using strtod: %f\n", n4);
	double n5= strtol(buffer, NULL,0);
	printf("Using strtol: %f\n", n5);
	double n6 = strtoul(buffer, NULL, 0);
	printf("Using strtoul: %f\n", n6);
	return 0;
}