39 lines
855 B
C
39 lines
855 B
C
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#include <quadmath.h>
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#include <stdlib.h>
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#include <stdio.h>
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int
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main (void)
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{
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__float128 r = strtoflt128 ("1.23456789", NULL);
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int prec = 20;
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int width = 46;
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char buf[128];
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r = 2.0q;
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r = sqrtq (r);
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int n = quadmath_snprintf (buf, sizeof buf, "%+-#*.20Qe", width, r);
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if ((size_t) n < sizeof buf)
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/* Prints: +1.41421356237309504880e+00 */
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printf ("%s\n", buf);
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quadmath_snprintf (buf, sizeof buf, "%Qa", r);
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if ((size_t) n < sizeof buf)
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/* Prints: 0x1.6a09e667f3bcc908b2fb1366ea96p+0 */
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printf ("%s\n", buf);
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n = quadmath_snprintf (NULL, 0, "%+-#46.*Qe", prec, r);
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if (n > -1)
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{
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char *str = malloc (n + 1);
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if (str)
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{
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quadmath_snprintf (str, n + 1, "%+-#46.*Qe", prec, r);
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/* Prints: +1.41421356237309504880e+00 */
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printf ("%s\n", str);
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}
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free (str);
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}
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return 0;
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}
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