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3.1 strtoflt128 — Convert from string

The function strtoflt128 converts a string into a __float128 number.


__float128 strtoflt128 (const char *s, char **sp)

sinput string
spthe address of the next character in the string

The argument sp contains, if not NULL, the address of the next character following the parts of the string, which have been read.

#include <quadmath.h>

int main ()
  __float128 r;

  r = strtoflt128 ("1.2345678", NULL);

  return 0;