Default to explicit conversions for integer

Author: mborland

include/boost/decimal/decimal128_t.hpp

@@ -218,7 +218,7 @@ BOOST_DECIMAL_EXPORT class decimal128_t final
     #else
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
     #endif
-    #ifndef BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
     explicit
     #endif
     BOOST_DECIMAL_CXX20_CONSTEXPR decimal128_t(Float val) noexcept;
@@ -243,6 +243,9 @@ BOOST_DECIMAL_EXPORT class decimal128_t final
     #else
     template <typename Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
     #endif
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal128_t(Integer val) noexcept;
 
     template <typename Integer>

include/boost/decimal/decimal32_t.hpp

@@ -224,7 +224,7 @@ BOOST_DECIMAL_EXPORT class decimal32_t final // NOLINT(cppcoreguidelines-special
     #else
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
     #endif
-    #ifndef BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
     explicit
     #endif
     BOOST_DECIMAL_CXX20_CONSTEXPR decimal32_t(Float val) noexcept;
@@ -250,6 +250,9 @@ BOOST_DECIMAL_EXPORT class decimal32_t final // NOLINT(cppcoreguidelines-special
     #else
     template <BOOST_DECIMAL_INTEGRAL Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
     #endif
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal32_t(Integer val) noexcept;
 
     template <typename Integer>

include/boost/decimal/decimal64_t.hpp

@@ -236,7 +236,7 @@ BOOST_DECIMAL_EXPORT class decimal64_t final
     #else
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
     #endif
-    #ifndef BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
     explicit
     #endif
     BOOST_DECIMAL_CXX20_CONSTEXPR decimal64_t(Float val) noexcept;
@@ -262,6 +262,9 @@ BOOST_DECIMAL_EXPORT class decimal64_t final
     #else
     template <typename Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
     #endif
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal64_t(Integer val) noexcept;
 
     template <typename Integer>

include/boost/decimal/decimal_fast128_t.hpp

@@ -178,14 +178,20 @@ BOOST_DECIMAL_EXPORT class decimal_fast128_t final
     #else
     template <typename Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
     #endif
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal_fast128_t(Integer val) noexcept;
 
     #ifdef BOOST_DECIMAL_HAS_CONCEPTS
     template <BOOST_DECIMAL_REAL Float>
     #else
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
     #endif
-    explicit BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast128_t(Float val) noexcept;
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
+    explicit
+    #endif
+    BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast128_t(Float val) noexcept;
 
     #ifdef BOOST_DECIMAL_UNSUPPORTED_LONG_DOUBLE
     explicit BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast128_t(long double val) noexcept = delete;

include/boost/decimal/decimal_fast32_t.hpp

@@ -159,10 +159,16 @@ BOOST_DECIMAL_EXPORT class decimal_fast32_t final
     explicit constexpr decimal_fast32_t(bool value) noexcept;
 
     template <typename Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal_fast32_t(Integer coeff) noexcept;
 
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
-    explicit BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast32_t(Float val) noexcept;
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
+    explicit
+    #endif
+    BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast32_t(Float val) noexcept;
 
     #ifdef BOOST_DECIMAL_UNSUPPORTED_LONG_DOUBLE
     explicit constexpr decimal_fast32_t(long double val) noexcept = delete;

include/boost/decimal/decimal_fast64_t.hpp

@@ -189,14 +189,20 @@ BOOST_DECIMAL_EXPORT class decimal_fast64_t final
     #else
     template <typename Integer, std::enable_if_t<detail::is_integral_v<Integer>, bool> = true>
     #endif
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_INTEGER_CONVERSIONS)
+    explicit
+    #endif
     constexpr decimal_fast64_t(Integer val) noexcept;
 
     #ifdef BOOST_DECIMAL_HAS_CONCEPTS
     template <BOOST_DECIMAL_REAL Float>
     #else
     template <typename Float, std::enable_if_t<detail::is_floating_point_v<Float>, bool> = true>
     #endif
-    explicit BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast64_t(Float val) noexcept;
+    #if !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_CONVERSIONS) && !defined(BOOST_DECIMAL_ALLOW_IMPLICIT_FLOAT_CONVERSIONS)
+    explicit
+    #endif
+    BOOST_DECIMAL_CXX20_CONSTEXPR decimal_fast64_t(Float val) noexcept;
 
     #ifdef BOOST_DECIMAL_UNSUPPORTED_LONG_DOUBLE
     explicit constexpr decimal_fast64_t(long double val) noexcept = delete;