3 files changed, 16 insertions, 16 deletions
diff --git a/tools/preproc/asm_file.cpp b/tools/preproc/asm_file.cpp
index 49c9e3c66..bb296b78b 100644
--- a/tools/preproc/asm_file.cpp
+++ b/tools/preproc/asm_file.cpp
@@ -494,7 +494,7 @@ bool AsmFile::IsAtEnd()
 // Output the current location to set gas's logical file and line numbers.
 void AsmFile::OutputLocation()
 {
-    printf("# %ld \"%s\"\n", m_lineNum, m_filename.c_str());
+    std::printf("# %ld \"%s\"\n", m_lineNum, m_filename.c_str());
 }
 
 // Reports a diagnostic message.
diff --git a/tools/preproc/c_file.cpp b/tools/preproc/c_file.cpp
index a2f178623..5bfdee086 100644
--- a/tools/preproc/c_file.cpp
+++ b/tools/preproc/c_file.cpp
@@ -247,23 +247,23 @@ bool CFile::CheckIdentifier(const std::string& ident)
 
 std::unique_ptr<unsigned char[]> CFile::ReadWholeFile(const std::string& path, int& size)
 {
-    FILE* fp = fopen(path.c_str(), "rb");
+    FILE* fp = std::fopen(path.c_str(), "rb");
 
     if (fp == nullptr)
         RaiseError("Failed to open \"%s\" for reading.\n", path.c_str());
 
-    fseek(fp, 0, SEEK_END);
+    std::fseek(fp, 0, SEEK_END);
 
-    size = ftell(fp);
+    size = std::ftell(fp);
 
     std::unique_ptr<unsigned char[]> buffer = std::unique_ptr<unsigned char[]>(new unsigned char[size]);
 
-    rewind(fp);
+    std::rewind(fp);
 
-    if (fread(buffer.get(), size, 1, fp) != 1)
+    if (std::fread(buffer.get(), size, 1, fp) != 1)
         RaiseError("Failed to read \"%s\".\n", path.c_str());
 
-    fclose(fp);
+    std::fclose(fp);
 
     return buffer;
 }
@@ -379,9 +379,9 @@ void CFile::TryConvertIncbin()
         offset += size;
 
         if (isSigned)
-            printf("%d,", data);
+            std::printf("%d,", data);
         else
-            printf("%uu,", data);
+            std::printf("%uu,", data);
     }
 
     std::printf("}");
diff --git a/tools/preproc/preproc.cpp b/tools/preproc/preproc.cpp
index b51861580..8320a2d27 100644
--- a/tools/preproc/preproc.cpp
+++ b/tools/preproc/preproc.cpp
@@ -31,15 +31,15 @@ void PrintAsmBytes(unsigned char *s, int length)
 {
     if (length > 0)
     {
-        printf("\t.byte ");
+        std::printf("\t.byte ");
         for (int i = 0; i < length; i++)
         {
-            printf("0x%02X", s[i]);
+            std::printf("0x%02X", s[i]);
 
             if (i < length - 1)
-                printf(", ");
+                std::printf(", ");
         }
-        putchar('\n');
+        std::putchar('\n');
     }
 }
 
@@ -89,8 +89,8 @@ void PreprocAsmFile(std::string filename)
 
             if (globalLabel.length() != 0)
             {
-                printf("\t.global %s\n", globalLabel.c_str());
-                printf("%s:\n", globalLabel.c_str());
+                std::printf("\t.global %s\n", globalLabel.c_str());
+                std::printf("%s:\n", globalLabel.c_str());
             }
             else
             {
@@ -134,7 +134,7 @@ int main(int argc, char **argv)
 {
     if (argc != 3)
     {
-        fprintf(stderr, "Usage: %s SRC_FILE CHARMAP_FILE", argv[0]);
+        std::fprintf(stderr, "Usage: %s SRC_FILE CHARMAP_FILE", argv[0]);
         return 1;
     }