Mercurial > hg > ucx / changeset

     1.1 --- a/src/cx/utils.h	Tue Feb 07 20:06:33 2023 +0100
     1.2 +++ b/src/cx/utils.h	Tue Feb 07 20:08:08 2023 +0100
     1.3 @@ -58,20 +58,6 @@
     1.4  
     1.5  #if __WORDSIZE == 32
     1.6  /**
     1.7 - * Alias for \c __builtin_umul_overflow.
     1.8 - *
     1.9 - * Performs a multiplication of size_t values and checks for overflow.
    1.10 - *
    1.11 - * @param a first operand
    1.12 - * @param b second operand
    1.13 - * @param result a pointer to a size_t, where the result should
    1.14 - * be stored
    1.15 - * @return zero, if no overflow occurred and the result is correct, non-zero
    1.16 - * otherwise
    1.17 - */
    1.18 -#define cx_szmul(a, b, result) __builtin_umul_overflow(a, b, result)
    1.19 -#else // __WORDSIZE != 32
    1.20 -/**
    1.21   * Alias for \c __builtin_umull_overflow.
    1.22   *
    1.23   * Performs a multiplication of size_t values and checks for overflow.
    1.24 @@ -84,6 +70,20 @@
    1.25   * otherwise
    1.26   */
    1.27  #define cx_szmul(a, b, result) __builtin_umull_overflow(a, b, result)
    1.28 +#else // __WORDSIZE != 32
    1.29 +/**
    1.30 + * Alias for \c __builtin_umulll_overflow.
    1.31 + *
    1.32 + * Performs a multiplication of size_t values and checks for overflow.
    1.33 + *
    1.34 + * @param a first operand
    1.35 + * @param b second operand
    1.36 + * @param result a pointer to a size_t, where the result should
    1.37 + * be stored
    1.38 + * @return zero, if no overflow occurred and the result is correct, non-zero
    1.39 + * otherwise
    1.40 + */
    1.41 +#define cx_szmul(a, b, result) __builtin_umulll_overflow(a, b, result)
    1.42  #endif // __WORDSIZE
    1.43  
    1.44  #else // no GNUC or clang bultin