Function fix_ascii_format

numpy/core/src/common/numpyos.c:253–276

* Fix the generated string: make sure the decimal is ., that exponent has a * minimal number of digits, and that it has a decimal + one digit after that * decimal if decimal argument != 0 (Same effect that 'Z' format in * PyOS_ascii_formatd) */

 * PyOS_ascii_formatd)
 */
static char*
fix_ascii_format(char* buf, size_t buflen, int decimal)
{
    /*
     * Get the current locale, and find the decimal point string.
     * Convert that string back to a dot.
     */
    change_decimal_from_locale_to_dot(buf);

    /*
     * If an exponent exists, ensure that the exponent is at least
     * MIN_EXPONENT_DIGITS digits, providing the buffer is large enough
     * for the extra zeros.  Also, if there are more than
     * MIN_EXPONENT_DIGITS, remove as many zeros as possible until we get
     * back to MIN_EXPONENT_DIGITS
     */
    ensure_minimum_exponent_length(buf, buflen);

    if (decimal != 0) {
        ensure_decimal_point(buf, buflen);
    }

    return buf;
}

/*
 * NumPyOS_ascii_format*: