Difference between revisions of "SHIP:Sail:itof"

Revision as of 05:25, 14 July 2014

Function	Returns	Introduced	Description
itof	Integer	v5.0	Explicitly casts an Integer to a Float

See Also:

• Sail Home
• Sail Functions
• Sail Numeric Functions
• abs, ceil, floor, ftoi, max, min, round

Prototype

Float itof(Integer n);

Parameters/Return Value

Detailed Description

The itof() function explicitly casts the supplied Float to an Integer. You may want to use this in mathematical expressions around items so that the expression evaluation is moved into the floating point domain. For example:

intValue = 5/4*10;

will return 10 since the whole expression is evaluated at run-time in the Integer domain, and 5/4 will be evaluated using integer math resulting in 1. However,

intValue = 5/itof(4)*10;

will return 11 since the 5/4 will be evaluated using floating point math. Obviously, this is equivalent to:

intValue = 5/4.0f*10;

However,this methodology becomes more useful when a function that returns a Integer is used:

intValue = 5/itof(strlen(s))*10;

Examples