Linked Questions

What does the f after the numbers indicate? Is this from C or Objective-C? Is there any difference in not adding this to a constant number? CGRect frame = CGRectMake(0.0f, 0.0f, 320.0f, 50.0f); Can ...

I don't know why f or F is placed after float values in Java or other languages? for instance, float fVariable = 12.3f; any features other than indicating that this is a float value?

If I have the following declaration: float a = 3.0 ; is that an error? I read in a book that 3.0 is a double value and that I have to specify it as float a = 3.0f. Is it so?

I am wondering what the difference is between these two variables in C: float price = 3.00; and float price = 3.00f; What is the use of suffix f in this case?

I ask because I am using the Box2D library, which calls for mostly float arguments. Although I see a lot of example code that uses the 0.00f format, I am not quite sure if there is an actual ...

What is the difference between the 2 following code lines? #define F_SAMP 10000.0f #define F_SAMP 10000.0 Aren't both float? (By the way, in this particular case compiler is XC16 but I do not think ...

Can there be a difference in bit-representation between a direct assignment of a floating point literal float x = 3.2f; and a double implicitly converted to a float float x2 = 3.2;? I.e. is #define ...

I understand that the floating points are represented in memory using sign, exponent and mantissa form which have limited number of bits to represent each part and hence this leads to rounding errors. ...

How to define a double constant in C ? For float is like so: #define powerFactor 1.00f For double i dont know: #define energy 55639.00xx Should xx be d, ld, lf, nothing or compiler specific?

I know that according to the single point standard IEEE the maximum value of a float is 1.11111111111111111111111 *2^127 which converted in decimal is exactly this huge number -> ...

Look at this snippet: int main() { double v = 1.1; return v == 1.1; } On 32-bit compilations, this program returns 0, if -fexcess-precision=standard is specified. Without it, the program ...

I have to code C for my college exams and I have practice of declaring double variables instead of float variables. Is it a bad habit? Can they deduct marks for it? (we never exceed the float limit) I ...

I was just beginning out with C (K.N king's C Programming) when I came across the following passage: By default, floating constants are stored as double-precision numbers. In other words, when a C ...

I wanted to see the difference in how many digits i get when using float and when using double but i get the same results #include <stdio.h> int main() { float x=1.2222222222222222f; ...

So I don't really get the conversion from a float to a double e.g: float wow = 1.123562641346; float wow = 1.123562641346f; The first one is a double that gets saved in a variable that has memory ...