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Fix some miscellaneous MSVC warnings #7

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Fix some miscellaneous MSVC warnings #7

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1b02959
Fixed some MSVC warnings
RandomEden Jan 20, 2025
d5c1804
Merge branch 'PerformanC:main' into fix_msvc_warnings
0xfadead Jan 20, 2025
bc7c20a
Change `_really_` to `REALLY` in comment
0xfadead Feb 4, 2025
e29a3d7
Added extra line for formatting
0xfadead Feb 4, 2025
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7 changes: 6 additions & 1 deletion cthreads.c
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,11 @@ void cthreads_thread_exit(void *code) {
#endif

#ifdef _WIN32
#if defined __WATCOMC__ || _MSC_VER || __DMC__
/* NOTE: This gives warnings on MSVC, so I removed this
* for the oldest version of it I could test (19.20). */
/* TODO: Test with the other described compilers if this
* is _really_ necessary. */
#if defined __WATCOMC__ || _MSC_VER < 1920 || __DMC__
ExitThread((DWORD)code);
#else
ExitThread((DWORD)(uintptr_t)code);
Expand Down Expand Up @@ -323,6 +327,7 @@ int cthreads_cond_destroy(struct cthreads_cond *cond) {
#endif

#ifdef _WIN32
(void) cond;
return 0;
#else
return pthread_cond_destroy(&cond->pCond);
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2 changes: 2 additions & 0 deletions cthreads.h
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Expand Up @@ -7,6 +7,8 @@ struct cthreads_args {
};

#ifdef _WIN32
/* MSVC sees strncpy() as insecure. */
#define _CRT_SECURE_NO_WARNINGS
Comment on lines +10 to +11
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@ThePedroo ThePedroo Jan 21, 2025

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Suggested change
/* MSVC sees strncpy() as insecure. */
#define _CRT_SECURE_NO_WARNINGS
/* INFO: MSVC sees strncpy() as insecure. */
#define _CRT_SECURE_NO_WARNINGS

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@ThePedroo ThePedroo Jan 21, 2025

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Also, is this widely compatible or affects files outside the project? For second case, I believe we can #undef it? Wouldn't be good to apply such for files outside.

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@0xfadead 0xfadead Jan 21, 2025 •
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I'm afraid there's no easy way to do this.
We could of course undef it, but it would still propagate because of windows.h's include guards.
The best solution would be to not require windows.h in the header, but the only way to do this is making all structs (or parts of structs using specific types) opaque.

I think the best course of action is just to remove the define and endur the warning or add an option for the user to disable the define.

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@ThePedroo ThePedroo Jan 21, 2025 •
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In my opinion we can should* strncpy for memcpy and just handle NULL terminator ending. With proper testing, it becomes safe anyway.

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@0xfadead 0xfadead Feb 4, 2025

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If I can find out in which version strncpy_s() was introduced, I could probably make it version dependent.

#include <windows.h>
#define CTHREADS_SEMAPHORE 1
#else
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