From 54dfd185432d300746a8586cd3e620d5eb178a5d Mon Sep 17 00:00:00 2001
From: Marco Paland <marco@paland.com>
Date: Fri, 2 Nov 2018 14:00:03 +0100
Subject: feat(printf): added PRINTF_OVERRIDE_LIBC support

Fixes #16
---
 printf.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'printf.c')

diff --git a/printf.c b/printf.c
index ddea9e3..b5a38fc 100644
--- a/printf.c
+++ b/printf.c
@@ -699,8 +699,11 @@ static int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const
 
 ///////////////////////////////////////////////////////////////////////////////
 
-
+#ifndef PRINTF_OVERRIDE_LIBC
 int printf(const char* format, ...)
+#else
+int printf_(const char* format, ...)
+#endif
 {
   va_list va;
   va_start(va, format);
@@ -711,7 +714,11 @@ int printf(const char* format, ...)
 }
 
 
+#ifndef PRINTF_OVERRIDE_LIBC
 int sprintf(char* buffer, const char* format, ...)
+#else
+int sprintf_(char* buffer, const char* format, ...)
+#endif
 {
   va_list va;
   va_start(va, format);
@@ -721,7 +728,11 @@ int sprintf(char* buffer, const char* format, ...)
 }
 
 
+#ifndef PRINTF_OVERRIDE_LIBC
 int snprintf(char* buffer, size_t count, const char* format, ...)
+#else
+int snprintf_(char* buffer, size_t count, const char* format, ...)
+#endif
 {
   va_list va;
   va_start(va, format);
@@ -731,13 +742,21 @@ int snprintf(char* buffer, size_t count, const char* format, ...)
 }
 
 
+#ifndef PRINTF_OVERRIDE_LIBC
 int vsnprintf(char* buffer, size_t count, const char* format, va_list va)
+#else
+int vsnprintf_(char* buffer, size_t count, const char* format, va_list va)
+#endif
 {
   return _vsnprintf(_out_buffer, buffer, count, format, va);
 }
 
 
+#ifndef PRINTF_OVERRIDE_LIBC
 int fctprintf(void (*out)(char character, void* arg), void* arg, const char* format, ...)
+#else
+int fctprintf_(void (*out)(char character, void* arg), void* arg, const char* format, ...)
+#endif
 {
   va_list va;
   va_start(va, format);
-- 
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