$$% Arcus cosine. \def\acos{\cos^{-1}} % Vector projection. \def\projection#1#2{{proj_{#1}\left(#2\right)}} % Vector rejection. \def\rejection#1#2{{rej_{#1}\left(#2\right)}} % Norm. \def\norm#1{{\left\|#1\right\|}} % Cross product. \def\cross#1#2{\mathit{cross}\left(#1,#2\right)} % Dot product. \def\dot#1#2{{#1 \cdot #2}} % Magnitude. \def\mag#1{{\left|#1\right}} \def\group#1{\left(#1\right)}} \def\sbgrp#1{\left\{#1\right\}}$$

 #define Ring1_Intrinsic_Fp_SignificantMask_suffix /* Implementation */ 
where suffix is either f32 (for the type float) or f64 (for the type double).
For suffix f32: Symbolic constant evaluating to a uint32_t value. Masks the significant bits of the raw bits of a single-precision floating-point value (23 bits from index 22 to index 0).
For suffix f64: Symbolic constant evaluating to a uint64_t value. Masks the significant bits of the raw bits of a double-precision floating-point value (52 bits from index 51 to index 0).