Clarify definition of capture_or_promotion()

[stockfish] / src / pawns.cpp

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 0bd99f9b0e6d9058f9f9e49b6efd21cced6416a6..37db673f2ff2ede1b03e62808ce3db223d7f29c5 100644 (file)
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -124,7 +124,7 @@ namespace {
         // Test for backward pawn.
         // If the pawn is passed, isolated, or member of a pawn chain it cannot
         // be backward. If there are friendly pawns behind on adjacent files
-        // or if can capture an enemy pawn it cannot be backward either.
+        // or if it can capture an enemy pawn it cannot be backward either.
         if (   (passed | isolated | chain)
             || (ourPawns & pawn_attack_span(Them, s))
             || (pos.attacks_from<PAWN>(s, Us) & theirPawns))
@@ -145,9 +145,9 @@ namespace {
 
         assert(opposed | passed | (pawn_attack_span(Us, s) & theirPawns));
 
-        // A not passed pawn is a candidate to become passed, if it is free to
+        // A not-passed pawn is a candidate to become passed, if it is free to
         // advance and if the number of friendly pawns beside or behind this
-        // pawn on adjacent files is higher or equal than the number of
+        // pawn on adjacent files is higher than or equal to the number of
         // enemy pawns in the forward direction on the adjacent files.
         candidate =   !(opposed | passed | backward | isolated)
                    && (b = pawn_attack_span(Them, s + pawn_push(Us)) & ourPawns) != 0
@@ -188,7 +188,7 @@ namespace {
 
 namespace Pawns {
 
-/// init() initializes some tables by formula instead of hard-code their values
+/// init() initializes some tables by formula instead of hard-coding their values
 
 void init() {
 
@@ -252,8 +252,9 @@ Value Entry::shelter_storm(const Position& pos, Square ksq) {
 }
 
 
-/// Entry::update_safety() calculates and caches a bonus for king safety. It is
-/// called only when king square changes, about 20% of total king_safety() calls.
+/// Entry::update_safety() calculates and caches a bonus for king safety.
+/// It is called only when king square changes, which is about 20% of total
+/// king_safety() calls.
 
 template<Color Us>
 Score Entry::update_safety(const Position& pos, Square ksq) {