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Odd behavior when converting C strings to/from doubles
#include <errno.h>
#include <float.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char **argv) {
    double x, y;
    const char *s = "1e-310";

    /* Should print zero */
    x = DBL_MIN/100.;
    printf("DBL_MIN = %e, x = %en", DBL_MIN, x);

    /* Trying to read in floating point number smaller than DBL_MIN gives an error */
    y = strtod(s, NULL);
    if(errno != 0)
        printf("  Error converting '%s': %sn", s, strerror(errno));
    printf("y = %en", y);

    return 0;
}

DBL_MIN = 2.225074e-308, x = 2.225074e-310
  Error converting '1e-310': Numerical result out of range
y = 1.000000e-310