From 7936fc34c4e2f734981832c1201777cb429d4a0a Mon Sep 17 00:00:00 2001 From: Marco Paland Date: Mon, 13 Nov 2017 09:29:14 +0100 Subject: Changed printf.cpp to printf.c to be usable with 'C'-compilers closes #1 --- README.md | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'README.md') diff --git a/README.md b/README.md index bd4c73f..7af4a2f 100644 --- a/README.md +++ b/README.md @@ -28,18 +28,28 @@ Therefore I decided to write an own implementation which meets the following ite - Support of dec/float number representation (with an own fast itoa/ftoa) - Reentrant and thread-safe, malloc free - LINT and compiler L4 warning free, coverity clean, automotive ready - - Extensive test suite (> 270 test cases) passing + - Extensive test suite (> 280 test cases) passing + - Simply the best printf around the net - MIT license ## Usage -Add/link `printf.cpp` to your project and include `printf.h`. That's it. -Usage is 1:1 like the according stdio.h library version: - +Add/link *printf.c* to your project and include *printf.h*. That's it. +Implement your low level output function needed for `printf()`: +```C +void _putchar(char character) +{ + // send char to console etc. +} +``` + +Usage is 1:1 like the according stdio.h library version: +```C `int printf(const char* format, ...);` `int sprintf(char* buffer, const char* format, ...);` `int snprintf(char* buffer, size_t count, const char* format, ...);` +``` **Due to genaral security reasons it is highly recommended to use `snprintf` (with the max buffer size as `count` parameter) only.** `sprintf` has no buffer limitation, so when necessary - use it with care! -- cgit v1.2.3