Converts a double value to a null-terminated string, indicating the sign and decimal point location.

#include <stdlib.h>

char *fcvt (double value, int count, int *dec, int *sign);

Parameters

value

Value to convert. Stores the digits of value as a string and appends a null character \0.

count

Number of digits to store after decimal point. Excess digits are rounded off to count places. If there are fewer than count digits, the string is padded with 0s.

dec

Points to an integer value, which gives the position of the decimal point with respect to the beginning of the string. A 0 or negative integer value indicates that the decimal point lies to the left of the first digit.

sign

Points to an integer indicating the sign of value.

0	Positive
Not 0	Negative

Remarks

Only digits are stored in the string. Obtain the position of the decimal point and the sign of value from dec and sign after the call.

fcvt uses a single statically allocated buffer for the conversion. Each call destroys the results of the previous call.

Return Values

A pointer to the string of digits.

Requirements

See Also

atof, atoi, atol, ecvt, gcvt