diff --git a/api.cpp b/api.cpp
index 9014f3a..6edfd31 100644
--- a/api.cpp
+++ b/api.cpp
@@ -257,7 +257,7 @@ static char *getpoolnfo(char *params)
 
 static void gpuhwinfos(int gpu_id)
 {
-	char buf[256];
+	char buf[512];
 	char pstate[8];
 	char* card;
 	struct cgpu_info *cgpu = NULL;
diff --git a/scrypt.cpp b/scrypt.cpp
index a6b9b70..68e81e4 100644
--- a/scrypt.cpp
+++ b/scrypt.cpp
@@ -50,7 +50,17 @@ using namespace Concurrency;
 
 #if _MSC_VER > 1800
 #undef _THROW1
+#if __cplusplus < 201101L
 #define _THROW1(x) throw(std::bad_alloc)
+#else
+#define _THROW1(x) noexcept(false)
+#endif
+#elif !defined(_MSC_VER)
+#if __cplusplus < 201101L
+#define _THROW1(x) throw(std::bad_alloc)
+#else
+#define _THROW1(x) noexcept(false)
+#endif
 #endif
 
 // A thin wrapper around the builtin __m128i type
@@ -63,9 +73,9 @@ public:
 	void * operator new[](size_t size) _THROW1(_STD bad_alloc) { void *p; if ((p = _aligned_malloc(size, 16)) == 0) { static const std::bad_alloc nomem; _RAISE(nomem); } return (p); }
 	void operator delete[](void *p) { _aligned_free(p); }
 #else
-	void * operator new(size_t size) throw(std::bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
+	void * operator new(size_t size) _THROW1(_STD bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
 	void operator delete(void *p) { free(p); }
-	void * operator new[](size_t size) throw(std::bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
+	void * operator new[](size_t size) _THROW1(_STD bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
 	void operator delete[](void *p) { free(p); }
 #endif
 	uint32x4_t() { };
diff --git a/scrypt/test_kernel.cu b/scrypt/test_kernel.cu
index e4467d1..ab5b03c 100644
--- a/scrypt/test_kernel.cu
+++ b/scrypt/test_kernel.cu
@@ -47,7 +47,7 @@ texture<uint4, 2, cudaReadModeElementType> texRef2D_4_V;
 
 template <int ALGO> __device__  __forceinline__ void block_mixer(uint4 &b, uint4 &bx, const int x1, const int x2, const int x3);
 
-static __host__ __device__ uint4& operator^=(uint4& left, const uint4& right) {
+static __device__ uint4& operator^=(uint4& left, const uint4& right) {
 	left.x ^= right.x;
 	left.y ^= right.y;
 	left.z ^= right.z;
@@ -55,7 +55,7 @@ static __host__ __device__ uint4& operator^=(uint4& left, const uint4& right) {
 	return left;
 }
 
-static __host__ __device__ uint4& operator+=(uint4& left, const uint4& right) {
+static __device__ uint4& operator+=(uint4& left, const uint4& right) {
 	left.x += right.x;
 	left.y += right.y;
 	left.z += right.z;
@@ -63,7 +63,6 @@ static __host__ __device__ uint4& operator+=(uint4& left, const uint4& right) {
 	return left;
 }
 
-
 /* write_keys writes the 8 keys being processed by a warp to the global
  * scratchpad. To effectively use memory bandwidth, it performs the writes
  * (and reads, for read_keys) 128 bytes at a time per memory location
diff --git a/scrypt/titan_kernel.cu b/scrypt/titan_kernel.cu
index 1758722..57672a2 100644
--- a/scrypt/titan_kernel.cu
+++ b/scrypt/titan_kernel.cu
@@ -50,7 +50,7 @@ __constant__ uint32_t c_SCRATCH_WU_PER_WARP_1; // (SCRATCH * WU_PER_WARP)-1
 
 template <int ALGO> __device__  __forceinline__ void block_mixer(uint4 &b, uint4 &bx, const int x1, const int x2, const int x3);
 
-static __host__ __device__ uint4& operator ^= (uint4& left, const uint4& right) {
+static __device__ uint4& operator ^= (uint4& left, const uint4& right) {
 	left.x ^= right.x;
 	left.y ^= right.y;
 	left.z ^= right.z;
@@ -58,7 +58,7 @@ static __host__ __device__ uint4& operator ^= (uint4& left, const uint4& right)
 	return left;
 }
 
-static __host__ __device__ uint4& operator += (uint4& left, const uint4& right) {
+static __device__ uint4& operator += (uint4& left, const uint4& right) {
 	left.x += right.x;
 	left.y += right.y;
 	left.z += right.z;
diff --git a/sia/sia-rpc.cpp b/sia/sia-rpc.cpp
index 5eafe9e..4770426 100644
--- a/sia/sia-rpc.cpp
+++ b/sia/sia-rpc.cpp
@@ -74,10 +74,10 @@ char* sia_getheader(CURL *curl, struct pool_infos *pool)
 	struct data_buffer all_data = { 0 };
 	struct curl_slist *headers = NULL;
 	char data[256] = { 0 };
-	char url[512];
+	char url[512*3];
 
 	// nanopool
-	snprintf(url, 512, "%s/miner/header?address=%s&worker=%s", //&longpoll
+	snprintf(url, sizeof(url), "%s/miner/header?address=%s&worker=%s", //&longpoll
 		pool->url, pool->user, pool->pass);
 
 	if (opt_protocol)
@@ -148,7 +148,7 @@ bool sia_submit(CURL *curl, struct pool_infos *pool, struct work *work)
 	struct data_buffer all_data = { 0 };
 	struct curl_slist *headers = NULL;
 	char buf[256] = { 0 };
-	char url[512];
+	char url[512*3];
 
 	if (opt_protocol)
 		applog_hex(work->data, 80);
@@ -156,7 +156,7 @@ bool sia_submit(CURL *curl, struct pool_infos *pool, struct work *work)
 	//applog_hex(&work->data[10], 4);
 
 	// nanopool
-	snprintf(url, 512, "%s/miner/header?address=%s&worker=%s",
+	snprintf(url, sizeof(url), "%s/miner/header?address=%s&worker=%s",
 		pool->url, pool->user, pool->pass);
 
 	if (opt_protocol)
diff --git a/util.cpp b/util.cpp
index 9c2194d..66617af 100644
--- a/util.cpp
+++ b/util.cpp
@@ -616,7 +616,7 @@ err_out:
 json_t *json_rpc_call_pool(CURL *curl, struct pool_infos *pool, const char *req,
 	bool longpoll_scan, bool longpoll, int *curl_err)
 {
-	char userpass[512];
+	char userpass[768];
 	// todo, malloc and store that in pool array
 	snprintf(userpass, sizeof(userpass), "%s%c%s", pool->user,
 		strlen(pool->pass)?':':'\0', pool->pass);
@@ -627,7 +627,7 @@ json_t *json_rpc_call_pool(CURL *curl, struct pool_infos *pool, const char *req,
 /* called only from longpoll thread, we have the lp_url */
 json_t *json_rpc_longpoll(CURL *curl, char *lp_url, struct pool_infos *pool, const char *req, int *curl_err)
 {
-	char userpass[512];
+	char userpass[768];
 	snprintf(userpass, sizeof(userpass), "%s%c%s", pool->user,
 		strlen(pool->pass)?':':'\0', pool->pass);