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100

101

Chapter 15 Functions

15-53

SPRINTF$ (Function)

Function

Converts an expression to a designated format and returns it as a character

string.

Format

SPRINTF$ (<Format>, <Expression>)

Explanation

<Format> includes a character string for output as it is, and a conversion

designation character string for converting and outputting the contents of

<Expression> (as a part of a character string).

The first character of the conversion designation character string is % and a

character (string) follows it.

• A flag of 0 or more signifies a conversion designation character string (no

special order). The minimum field width (option) for writing a character

string. If the number of converted character values is less than the minimum

field width, the left side (right side if the following left justification flag is

designated) of the field is embedded with blanks (default) to fill the minimum

field width. The field width value is denoted as an asterisk (*) (described in

latter section) or an integer value.

• Precision (Option). The precision option designates the minimum number of

digits displayed in conversion using conversion designation symbols d, i, o,

x and X. It designates the number of digits after the decimal point displayed

in conversion using conversion designation symbols e, E and f, and the

maximum effective number of digits displayed in conversion using

conversion designation symbols g and G. It also designates the maximum

number of characters written from a character string in conversion using

conversion designation symbol s. A period (.) is used as the precision value

followed by an asterisk (*) (described in the latter section) or an integer

value (option). If only a period is designated, the precision is designated as

0. If precision is designated with other conversion designation symbols, the

motion is not defined.

• Conversion designation symbol

As just described, an asterisk (*) can be designated for field width and

precision. In the case of an integer type argument, designate the value of

width and precision. Arguments which designate the field width or precision,

or a value of both must be designated before (put field width before

precision) an argument (only if this is present) can be converted. If a

negative value is designated for the field width, it becomes the same

designation as the positive field width designated after a negative

conversion designation symbol. If a negative value is designated for

precision, it is the same as if the precision is ignored.

The meanings of the flags are as follows.

- : The conversion result is left justified in the field. (If this flag is not

designated, it is right justified.)

+ : In conversion with a sign, the first figure always has a + or - sign (If this

flag is not designated, a sign of - is added only for a negative value.)

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