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fcvt
Converts a floating-point number to a string.
Syntax
char *fcvt (double value, int ndigit, int *decpt, int *sign);
Parameters
value The floating-point number to be converted to a character
string.
ndigit The number of digits to convert.
decpt A pointer to an integer to which the position of the
decimal point relative to the beginning of the string is
returned.
sign A pointer to an integer to which a flag indicating the sign
of the number is returned.
Return Values
x A pointer to a character array containing the resulting
numeric character string.
Description
The fcvt function converts value to a null-terminated string of ndigit
digits and returns a pointer to the string. The resulting numeric string
is rounded and left-justified without leading zeros. The position of the
decimal point relative to the beginning of the string is stored
indirectly through decpt (negative means to the left of the returned
digits). The decimal point is not included in the returned string. If
the sign of the result is negative, the word pointed to by sign is
non-zero; otherwise, the word pointed to by sign is zero.
This function is identical to ecvt(), except that the correct digit has
been rounded for printf %f (FORTRAN F-format) output of the number of
digits specified by ndigit.
The fcvt function points to a single static data array whose content is
overwritten by each call.
See Also
ecvt(), gcvt()