Strtof Function

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Function:

Converts string representation of a real value into a real value.

Syntax:

strtof(byref str as string) as real

See Also:

ftostr, str, val

 


Part

Description

str

String to convert.

Details

You must keep in mind that floating-point calculations are inherently imprecise. Not every value can be converted into its exact floating-point representation. Also, strtof can be invoked implicitly. Examples below illustrates this.

Examples

 

dim r1 as real

dim s as string

 

s="456.125"

r1=strtof(s) 'r1 will be equal to 456.125. This conversion will be done without errors.

s="123.200"

r1=strtof(s) '123.200 will be converted with errors. Actual result will be 123.25.

r1=s 'implicit invocation. Same result as for the line above.