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Bug 3530 - Sdl uses a function i have defined for its own purposes
Summary: Sdl uses a function i have defined for its own purposes
Status: RESOLVED INVALID
Alias: None
Product: SDL
Classification: Unclassified
Component: main (show other bugs)
Version: 2.0.5
Hardware: x86_64 Linux
: P2 normal
Assignee: Ryan C. Gordon
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-12-22 07:56 UTC by Kaden Thomas
Modified: 2017-01-02 03:00 UTC (History)
2 users (show)

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Description Kaden Thomas 2016-12-22 07:56:40 UTC 
in my main.c file i have this function:

void read(void *env, uint8_t data)
{
	printf("%p : 0x%x\n", env, data);
}

What I found is that if I call SDL_Init(), data is printed using my function unless I mark the function as static or static inline.
Comment 1 Philipp Wiesemann 2016-12-22 20:54:22 UTC 
read() is already available ("unistd.h", POSIX). The linking might get messed up if there are more functions with the same name (see also bug 2884).
Comment 2 Ozkan Sezer 2016-12-29 06:29:28 UTC 
man 2 read

This must be closed as invalid.
Comment 3 Sam Lantinga 2017-01-02 03:00:29 UTC 
Yes, you generally can't reimplement C library functions in your own program. The behavior is undefined on various platforms.