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It is necessary to add f at a value float within the parameters of a if?
Example:
if (a == 2.5f && a > 2.0f) {}
1 answer
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It has nothing to do with if, is a matter of choosing the literal who wants to use.
If you want the number to be one float then you should use the f always. If not using and have decimal point it will be by default a double. This type has 64 bits and the float has 32 bits. So with the suffix f or F it will take up less memory space, and of course, will have less precision.
If the number is integer, that is, it does not have a point in the literal, then it will not be double, much less float, unless you use a f.
In both there will be no accuracy, as already shown in previous question yours. If that’s what you want, you can’t use any of them. You need to create a mechanism of your own, use another form or a library that handles it correctly.
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Welcome Eduardo. Although it is not mandatory to insert 'f', it is recommended, as the compiler will interpret the number as float.
– Rogério Dec
In accordance with Floating point constants C, without the suffix the value will be treated as double. There’s a question in Soen about that too: Suffix of "f" on float value?
– Woss