4 files changed, 6 insertions, 6 deletions
diff --git a/README.md b/README.md
index 6583269..5ee138e 100644
--- a/README.md
+++ b/README.md
@@ -51,8 +51,8 @@ int sprintf(char* buffer, const char* format, ...);
 int snprintf(char* buffer, size_t count, const char* format, ...);
 int vsnprintf(char* buffer, size_t count, const char* format, va_list va);
 
-// write to output function (instead of buffer)
-int oprintf(void (*out)(char character), const char* format, ...);
+// call output function (instead of buffer)
+int fctprintf(void (*out)(char character), const char* format, ...);
 ```
 
 
diff --git a/printf.c b/printf.c
index 342d91c..aa34cbd 100644
--- a/printf.c
+++ b/printf.c
@@ -691,7 +691,7 @@ int vsnprintf(char* buffer, size_t count, const char* format, va_list va)
 }
 
 
-int oprintf(void (*out)(char character), const char* format, ...)
+int fctprintf(void (*out)(char character), const char* format, ...)
 {
   va_list va;
   va_start(va, format);
diff --git a/printf.h b/printf.h
index c0ba2ae..194f65f 100644
--- a/printf.h
+++ b/printf.h
@@ -87,7 +87,7 @@ int vsnprintf(char* buffer, size_t count, const char* format, va_list va);
  * \param format A string that specifies the format of the output
  * \return The number of characters that are sent to the output function, not counting the terminating null character
  */
-int oprintf(void (*out)(char character), const char* format, ...);
+int fctprintf(void (*out)(char character), const char* format, ...);
 
 
 #ifdef __cplusplus
diff --git a/test/test_suite.cpp b/test/test_suite.cpp
index c5614b0..4bc773a 100644
--- a/test/test_suite.cpp
+++ b/test/test_suite.cpp
@@ -57,10 +57,10 @@ TEST_CASE("printf", "[]" ) {
 }
 
 
-TEST_CASE("oprintf", "[]" ) {
+TEST_CASE("fctprintf", "[]" ) {
   printf_idx = 0U;
   memset(printf_buffer, 0xCC, 100U);
-  test::oprintf(&test::_putchar, "This is a test of %X", 0x12EFU);
+  test::fctprintf(&test::_putchar, "This is a test of %X", 0x12EFU);
   REQUIRE(!strcmp(printf_buffer, "This is a test of 12EF"));
 }