isgreater
From cppreference.com
| Defined in header <math.h>
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||
| #define isgreater(x, y) /* implementation defined */ |
(since C99) | |
Determines if the floating-point number x is greater than the floating-point number (y), without setting floating-point exceptions.
Parameters
| x | - | floating-point value |
| y | - | floating-point value |
Return value
Nonzero integral value if x > y, 0 otherwise.
Notes
The built-in operator> for floating-point numbers may set FE_INVALID if one or both of the arguments is NaN. This function is a "quiet" version of operator>.
Example
Run this code
#include <math.h> #include <stdio.h> int main(void) { printf("isgreater(2.0,1.0) = %d\n", isgreater(2.0, 1.0)); printf("isgreater(1.0,2.0) = %d\n", isgreater(1.0, 2.0)); printf("isgreater(INFINITY,1.0) = %d\n", isgreater(INFINITY, 1.0)); printf("isgreater(1.0,NAN) = %d\n", isgreater(1.0, NAN)); return 0; }
Possible output:
isgreater(2.0,1.0) = 1 isgreater(1.0,2.0) = 0 isgreater(INFINITY,1.0) = 1 isgreater(1.0,NAN) = 0
References
- C23 standard (ISO/IEC 9899:2024):
- 7.12.14.1 The isgreater macro (p: TBD)
- F.10.11 Comparison macros (p: TBD)
- C17 standard (ISO/IEC 9899:2018):
- 7.12.14.1 The isgreater macro (p: 189)
- F.10.11 Comparison macros (p: 386-387)
- C11 standard (ISO/IEC 9899:2011):
- 7.12.14.1 The isgreater macro (p: 259)
- F.10.11 Comparison macros (p: 531)
- C99 standard (ISO/IEC 9899:1999):
- 7.12.14.1 The isgreater macro (p: 240)
See also
| (C99) |
checks if the first floating-point argument is less than the second (function macro) |
| C++ documentation for isgreater
| |