From 7bf9526f5edacd91602b9b9b07247e7a7b46fcc2 Mon Sep 17 00:00:00 2001
From: Alex Beregszaszi <alex@rtfs.hu>
Date: Wed, 8 Aug 2018 13:23:23 +0100
Subject: Mark libsolc external C functions as noexcept

These are part of the external C API where leaking through exceptions makes no sense.
---
 libsolc/libsolc.cpp | 18 +++++++++---------
 libsolc/libsolc.h   | 24 +++++++++++++++---------
 2 files changed, 24 insertions(+), 18 deletions(-)

diff --git a/libsolc/libsolc.cpp b/libsolc/libsolc.cpp
index 26ce98ce..6931ed08 100644
--- a/libsolc/libsolc.cpp
+++ b/libsolc/libsolc.cpp
@@ -270,46 +270,46 @@ static string s_outputBuffer;
 
 extern "C"
 {
-extern char const* license()
+extern char const* license() noexcept
 {
 	static string fullLicenseText = otherLicenses + licenseText;
 	return fullLicenseText.c_str();
 }
-extern char const* version()
+extern char const* version() noexcept
 {
 	return VersionString.c_str();
 }
-extern char const* compileJSON(char const* _input, bool _optimize)
+extern char const* compileJSON(char const* _input, bool _optimize) noexcept
 {
 	s_outputBuffer = compileSingle(_input, _optimize);
 	return s_outputBuffer.c_str();
 }
-extern char const* compileJSONMulti(char const* _input, bool _optimize)
+extern char const* compileJSONMulti(char const* _input, bool _optimize) noexcept
 {
 	s_outputBuffer = compileMulti(_input, _optimize);
 	return s_outputBuffer.c_str();
 }
-extern char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback)
+extern char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback) noexcept
 {
 	s_outputBuffer = compileMulti(_input, _optimize, _readCallback);
 	return s_outputBuffer.c_str();
 }
-extern char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback)
+extern char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback) noexcept
 {
 	s_outputBuffer = compileStandardInternal(_input, _readCallback);
 	return s_outputBuffer.c_str();
 }
-extern char const* solidity_license()
+extern char const* solidity_license() noexcept
 {
 	/// todo: make this the default or an alias
 	return license();
 }
-extern char const* solidity_version()
+extern char const* solidity_version() noexcept
 {
 	/// todo: make this the default or an alias
 	return version();
 }
-extern char const* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback)
+extern char const* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback) noexcept
 {
 	/// todo: make this the default or an alias
 	return compileStandard(_input, _readCallback);
diff --git a/libsolc/libsolc.h b/libsolc/libsolc.h
index 2cc004d4..e959b758 100644
--- a/libsolc/libsolc.h
+++ b/libsolc/libsolc.h
@@ -22,6 +22,12 @@
 
 #include <stdbool.h>
 
+#ifdef __cplusplus
+#define SOLC_NOEXCEPT noexcept
+#else
+#define SOLC_NOEXCEPT
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -30,16 +36,16 @@ extern "C" {
 /// heap-allocated and are free'd by the caller.
 typedef void (*CStyleReadFileCallback)(char const* _path, char** o_contents, char** o_error);
 
-char const* license();
-char const* version();
-char const* compileJSON(char const* _input, bool _optimize);
-char const* compileJSONMulti(char const* _input, bool _optimize);
-char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback);
-char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback);
+char const* license() SOLC_NOEXCEPT;
+char const* version() SOLC_NOEXCEPT;
+char const* compileJSON(char const* _input, bool _optimize) SOLC_NOEXCEPT;
+char const* compileJSONMulti(char const* _input, bool _optimize) SOLC_NOEXCEPT;
+char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback) SOLC_NOEXCEPT;
+char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback) SOLC_NOEXCEPT;
 
-char const* solidity_license();
-char const* solidity_version();
-char const* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback);
+char const* solidity_license() SOLC_NOEXCEPT;
+char const* solidity_version() SOLC_NOEXCEPT;
+char const* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback) SOLC_NOEXCEPT;
 
 #ifdef __cplusplus
 }
-- 
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