Mercurial > molko
view doc/docs/dev/api/core/trace.md @ 288:cc0f02ae9005
core: add maths_scale function
author | David Demelier <markand@malikania.fr> |
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date | Thu, 07 Jan 2021 15:50:01 +0100 |
parents | c4da052c0def |
children | b75fa5f47bf0 |
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# Module: trace Synopsis ```c #include <core/trace.h> ``` The purpose of this module is to provide a feedback from the code when there are non-fatal programming error or unexpected results. In contrast to the [debug](debug.md) module this one is always activated no manner if the build is in Debug or Release. For example, having an animation with a delay of 0 is not a technical issue but is probably not what the use wants. Thus, a trace warning may be generated in that way. ## Globals | Variable | Type | |---------------------------------|--------------------------| | [trace_handler](#trace_handler) | `void (*)(const char *)` | ### trace\_handler The default one use a simple printf on the standard output. ## Macros ### TRACE\_LINE\_MAX Maximum length for a trace log. ```c #define TRACE_LINE_MAX (1024) ``` ## Functions ### tracef Log some information using [printf][] format string. ```c void tracef(const char *fmt, ...) ``` ### traceva Like [tracef](#tracef) but using a `va_list`. ```c void traceva(const char *fmt, va_list ap) ``` [printf]: https://en.cppreference.com/w/c/io/fprintf