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fmt_double.3
Manvendra Bhangui edited this page Dec 31, 2023
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fmt_double - write an ASCII representation of a double
#include <fmt.h>
unsigned int fmt_double(char *dest,double d, unsigned int prec);
fmt_double writes an ASCII representation ('0' to '9', base 10) of d to dest and returns the number of bytes written. prec digits will be written, using scientific notation if necessary.
fmt_double does not append \0.
If dest equals FMT_LEN (i.e. is zero), fmt_double returns the number of bytes it would have written.