gentype
fmin
(
 gentype x, 
gentype y) 
gentypef
fmin
(
 gentypef x, 
float y) 
gentyped
fmin
(
 gentyped x, 
double y) 
gentype fmin (gentype x ,
half y ) // if half extension enabled

Returns y
if y
less than x
,
otherwise it returns x
. If one argument is a NaN,
fmin()
returns the other argument. If both arguments are NaNs,
fmin()
returns a NaN.
fmin
and
fmax behave as defined
by C99 and may not match the IEEE 7542008 definition for minNum
and maxNum
with regard to signaling NaNs. Specifically, signaling
NaNs may behave as quiet NaNs.
The vector versions of the math functions operate componentwise. The description is percomponent.
The builtin math functions are not affected by the prevailing rounding mode in the calling environment, and always return the same value as they would if called with the round to nearest even rounding mode.
The builtin math functions take scalar or vector arguments. For any specific use of these function, the actual type has to be the same for all arguments and the return type unless otherwise specified.
The generic type name gentype is used to indicate that the function can take float, float2, float3, float4, float8, float16, double, double2, double3, double4, double8, or double16 as the type for the arguments.
If extended with cl_khr_fp16, generic type name gentype may indicate half and half{234816} as arguments and return values.
The generic type name gentypef is used to indicate that the function can take float, float2, float3, float4, float8, or float16 as the type for the arguments.
The generic type name gentyped is used to indicate that the function can take double, double2, double3, double4, double8, or double16 as the type for the arguments.