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# isgreaterequal

From cppreference.com
< c‎ | numeric‎ | math

Defined in header `<math.h>` |  |
#define isgreaterequal(x, y) /* implementation defined */ |  | (since C99)

Determines if the floating point number `x` is greater than or equal to the floating-point number `y`, without setting floating-point exceptions.

### [edit] Parameters

x | - | floating point value
y | - | floating point value

### [edit] Return value

Nonzero integral value if x >= y, ​0​ otherwise.

### [edit] Notes

The built-in operator>= for floating-point numbers may raise FE_INVALID if one or both of the arguments is NaN. This function is a "quiet" version of operator>=.

### [edit] Example

Run this code

    #include <stdio.h>
    #include <math.h>

    int main(void)
    {
        printf("isgreaterequal(2.0,1.0)      = %d\n", isgreaterequal(2.0,1.0));
        printf("isgreaterequal(1.0,2.0)      = %d\n", isgreaterequal(1.0,2.0));
        printf("isgreaterequal(1.0,1.0)      = %d\n", isgreaterequal(1.0,1.0));
        printf("isgreaterequal(INFINITY,1.0) = %d\n", isgreaterequal(INFINITY,1.0));
        printf("isgreaterequal(1.0,NAN)      = %d\n", isgreaterequal(1.0,NAN));

        return 0;
    }

Possible output:

    isgreaterequal(2.0,1.0)      = 1
    isgreaterequal(1.0,2.0)      = 0
    isgreaterequal(1.0,1.0)      = 1
    isgreaterequal(INFINITY,1.0) = 1
    isgreaterequal(1.0,NAN)      = 0

### [edit] References

- C11 standard (ISO/IEC 9899:2011):

  - 7.12.14.2 The isgreaterequal macro (p: 259-260)

  - F.10.11 Comparison macros (p: 531)

- C99 standard (ISO/IEC 9899:1999):

  - 7.12.14.2 The isgreaterequal macro (p: 240-241)

### [edit] See also

islessequal (C99) | checks if the first floating-point argument is less or equal than the second (function) [edit]
C++ documentation for isgreaterequal

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