compare « float « C Data Type Q&A

1. Why does Splint (the C code checker) give an error when comparing a float to an int?    stackoverflow.com

Both are mathematical values, however the float does have more precision. Is that the only reason for the error - the difference in precision? Or is there another potential (and more ...

2. Comparing a float to an integer in C    stackoverflow.com

Can I compare a floating-point number to an integer? Will the float compare to integers in code?

float f;     // f has a saved predetermined floating-point value to it ...

3. Is relational comparison between int and float directly possible in C?    stackoverflow.com

I am using Visual Studio 6 with some old time code written in c. I found an issue where the code looks like this..

int x = 3;
float y = 3.0;

if(x == ...

4. problems in floating point comparison    stackoverflow.com

void main()
{
    float f = 0.98;
    if(f <= 0.98)
        printf("hi");
    else
     ...

5. Compare two floats    stackoverflow.com

#include <stdbool.h>

bool Equality(double a, double b, double epsilon)
{
  if (fabs(a-b) < epsilon) return true;
  return false;
}

6. Floating point comparison `a != 0.7`    stackoverflow.com

Possible Duplicate:
problems in floating point comparison

#include <stdio.h>
#include <conio.h>

main()
{
    float a = 0.7;
    if(a < 0.7)
    ...

7. Why is this floating point comparison true?    stackoverflow.com

Possible Duplicate:
Floating point comparison

#include <stdio.h>

void main()
{
    ...

8. Comparing floats    bytes.com

I have a function: int F(double a) { if (a = =1.0) { return 22; } return 44; } When I call F(1.0) it returns 22. But if I call F from a loop like: double a = 0.0; for (int j = 0; j <= 1000; j++) { std::cout << F(a) <

9. Floating Point comparison problem    bytes.com

Next month I will start to work on a C++ based Software named CAT++ which is going to provide FORTRAN like arrays in C++ and will be used within Scientific Community and hence will heavily depend on Numerical-Computations. I was reading 29.16 ans 29.17 sections of FAQs: http://www.parashift.com/c++-faq-lit...html#faq-29.16 as a test, I just tried this program on Linux, GCC 4.2.2 and ...

10. Comparison between floats... can it be dangerous?    bytes.com

Andrea B wrote:[color=blue] > Hi everybody, > > a guy told me during a job interview that we can't compare directly 2 > floats, because in very rare situations we can get wrong results. > I googled it, with no result.[/color] Funny, I just googled "float comparisons" and I got some pretty good hits. Jonathan

11. efficiency comparing ints and floats    cboard.cprogramming.com

That's what I'm asking in the last post (when I said "is always an integer", I meant an integer, not a C int). You could check this one by printing all the bits out, I think, but I won't bother doing that either. I'm sure if the number has a fixed precision it will be okay. Oh -- and thank you ...

12. floating comparision    daniweb.com