38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From 40848993ca0b4ce826b37508b740055d97a961e2 Mon Sep 17 00:00:00 2001
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From: Jonathan Dieter <jdieter@lesbg.com>
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Date: Mon, 24 Apr 2017 21:16:12 +0300
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Subject: [PATCH] [common] Fix overflow error with GCC 7
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Make sure n is always added to unsigned 1 to avoid overflow errors
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Signed-off-by: Jonathan Dieter <jdieter@lesbg.com>
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---
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src/common/galois_coeff.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/src/common/galois_coeff.h b/src/common/galois_coeff.h
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index 305bd10..da5a683 100644
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--- a/src/common/galois_coeff.h
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+++ b/src/common/galois_coeff.h
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@@ -38,7 +38,7 @@ constexpr uint8_t gf_mul2(uint8_t x) {
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* \return log(x)
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*/
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constexpr uint8_t gf_log(uint8_t x, uint8_t pow2n = 2, uint8_t n = 1) {
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- return x == pow2n ? n : gf_log(x, gf_mul2(pow2n), n + 1);
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+ return x == pow2n ? n : gf_log(x, gf_mul2(pow2n), n + 1U);
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}
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/*! \brief Compute base 2 exponent in GF(2^8).
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@@ -48,7 +48,7 @@ constexpr uint8_t gf_log(uint8_t x, uint8_t pow2n = 2, uint8_t n = 1) {
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* \return exp(x)
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*/
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constexpr uint8_t gf_exp(uint8_t x, uint8_t pow2n = 2, uint8_t n = 1) {
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- return x == n ? pow2n : gf_exp(x, gf_mul2(pow2n), n + 1);
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+ return x == n ? pow2n : gf_exp(x, gf_mul2(pow2n), n + 1U);
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}
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/*! \brief Returns lookup table for base 2 logarithm in GF(2^8). */
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--
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2.9.3
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