NAME
    ceil - returns smallest integer not less than a scalar or each vector
    component.

SYNPOSIS
      float  ceil(float a);
      float1 ceil(float2 a);
      float2 ceil(float2 a);
      float3 ceil(float3 a);
      float4 ceil(float4 a);
 
      half   ceil(half a);
      half1  ceil(half2 a);
      half2  ceil(half2 a);
      half3  ceil(half3 a);
      half4  ceil(half4 a);
 
      fixed  ceil(fixed a);
      fixed1 ceil(fixed2 a);
      fixed2 ceil(fixed2 a);
      fixed3 ceil(fixed3 a);
      fixed4 ceil(fixed4 a);

PARAMETERS
    a       Vector or scalar of which to determine the ceiling.

DESCRIPTION
    Returns the ceiling or smallest integer not less than a scalar or each
    vector component.

REFERENCE IMPLEMENTATION
    ceil for a float scalar could be implemented like this.

      float ceil(float v)
      {
        return -floor(-v);
      }

PROFILE SUPPORT
    ceil is supported in all profiles except fp20.

SEE ALSO
    the floor manpage

