Ensure std::exp can be found after including <cmath>

As noted in rime#462, including <cmath> only guarantees that std::exp is declared, so calling exp(double) unqualified is not portable. This adds a using-declaration for std::exp so that unqualified calls are guaranteed to work.
jwakely · Aug 10, 2021 · df4fe3e · df4fe3e
1 parent 1c2120c
commit df4fe3e
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diff --git a/src/rime/gear/script_translator.cc b/src/rime/gear/script_translator.cc
@@ -32,6 +32,8 @@
 
 namespace rime {
 
+using std::exp;
+
 namespace {
 
 struct SyllabifyTask {

diff --git a/src/rime/gear/table_translator.cc b/src/rime/gear/table_translator.cc
@@ -26,6 +26,8 @@
 
 namespace rime {
 
+using std::exp;
+
 static const char* kUnitySymbol = " \xe2\x98\xaf ";
 
 // TableTranslation