Item Value
Header filemath.h
Declaratinfloat nanf(const char *content);double nan(const char *content);long double nanl(const char *content);
Returnreturns a value that is not a number and that contains the string pointed to by content.
#include
#include
int main(void)
{
double f;
f = nan("2.0");
printf("%f " , f);
}
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