1 files changed, 12 insertions, 12 deletions

diff --git a/src/common/utf8.cpp b/src/common/utf8.cpp
index be4ebc855..66a2f6339 100644
--- a/src/common/utf8.cpp
+++ b/src/common/utf8.cpp
@@ -281,28 +281,28 @@ int u8_read_escape_sequence(const char *str, u32 *dest)
     do {
       digs[dno++] = str[i++];
     } while (octal_digit(str[i]) && dno < 3);
-    ch = strtol(digs, NULL, 8);
+    ch = strtol(digs, nullptr, 8);
   }
   else if (str[0] == 'x') {
     while (hex_digit(str[i]) && dno < 2) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   else if (str[0] == 'u') {
     while (hex_digit(str[i]) && dno < 4) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   else if (str[0] == 'U') {
     while (hex_digit(str[i]) && dno < 8) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   *dest = ch;
 
@@ -353,7 +353,7 @@ const char *u8_strchr(const char *s, u32 ch, int *charn)
     lasti = i;
     (*charn)++;
   }
-  return NULL;
+  return nullptr;
 }
 
 const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
@@ -378,7 +378,7 @@ const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
     lasti = i;
     (*charn)++;
   }
-  return NULL;
+  return nullptr;
 }
 
 int u8_is_locale_utf8(const char *locale)
@@ -419,35 +419,35 @@ bool UTF8StringHasNonASCII(const char *utf8string) {
 
 std::string ConvertWStringToUTF8(const wchar_t *wstr) {
     int len = (int)wcslen(wstr);
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, nullptr, nullptr);
     std::string s;
     s.resize(size);
     if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, nullptr, nullptr);
     }
     return s;
 }
 
 std::string ConvertWStringToUTF8(const std::wstring &wstr) {
     int len = (int)wstr.size();
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, nullptr, nullptr);
     std::string s;
     s.resize(size);
     if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, nullptr, nullptr);
     }
     return s;
 }
 
 void ConvertUTF8ToWString(wchar_t *dest, size_t destSize, const std::string &source) {
     int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
     MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, dest, std::min((int)destSize, size));
 }
 
 std::wstring ConvertUTF8ToWString(const std::string &source) {
     int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
     std::wstring str;
     str.resize(size);
     if (size > 0) {