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rte_approx.h(3) DPDK rte_approx.h(3) NAME rte_approx.h SYNOPSIS #include <stdint.h> Functions int rte_approx (double alpha, double d, uint32_t *p, uint32_t *q) int rte_approx_64 (double alpha, double d, uint64_t *p, uint64_t *q) Detailed Description RTE Rational Approximation Given a rational number alpha with 0 < alpha < 1 and a precision d, the goal is to find positive integers p, q such that alpha - d < p/q < alpha + d, and q is minimal. Definition in file rte_approx.h. Function Documentation int rte_approx (double alpha, double d, uint32_t * p, uint32_t * q) Find best rational approximation Parameters alpha Rational number to approximate d Precision for the rational approximation p Pointer to pre-allocated space where the numerator of the rational approximation will be stored when operation is successful q Pointer to pre-allocated space where the denominator of the rational approximation will be stored when operation is successful Returns 0 upon success, error code otherwise int rte_approx_64 (double alpha, double d, uint64_t * p, uint64_t * q) Find best rational approximation (64 bit version) Parameters alpha Rational number to approximate d Precision for the rational approximation p Pointer to pre-allocated space where the numerator of the rational approximation will be stored when operation is successful q Pointer to pre-allocated space where the denominator of the rational approximation will be stored when operation is successful Returns 0 upon success, error code otherwise Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jun 11 2026 rte_approx.h(3)
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