Defined in header <math.h> | ||
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#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.
| x | - | floating point value |
| y | - | floating point value |
Nonzero integral value if x >= y, 0 otherwise.
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>=.
#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
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(C99) | checks if the first floating-point argument is less or equal than the second (function macro) |
C++ documentation for isgreaterequal |
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