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How to test if pthread_setname_np() is available on my platform
Why should one bother with preprocessor directives?Combining C++ and C - how does #ifdef __cplusplus work?Defining Bit-Flags Using #define in C++Does SASS have gotchas like the C preprocessor?Is Pthread library actually a user thread solution?Cross-platform access to C constantsTest if preprocessor symbol is defined inside macroHow to detect GCC threading model with preprocessor?Test Availability of x_np pthread Functions - C/C++How is the POSIX threading api versioned and has it been updated since 1995?
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Some POSIX thread implementations define pthread_setname_np() to set a display name for a thread. However, this seems to be a nonstandard extension.
How can I test (via preprocessor directives) if the function is available on the platform I am building for, and skip the call if it is not?
pthreads c-preprocessor
asked Mar 22 at 20:49
user149408user149408
2,2471129
add a comment |
Some POSIX thread implementations define pthread_setname_np() to set a display name for a thread. However, this seems to be a nonstandard extension.
How can I test (via preprocessor directives) if the function is available on the platform I am building for, and skip the call if it is not?
pthreads c-preprocessor
asked Mar 22 at 20:49
user149408user149408
2,2471129
add a comment |
Some POSIX thread implementations define pthread_setname_np() to set a display name for a thread. However, this seems to be a nonstandard extension.
How can I test (via preprocessor directives) if the function is available on the platform I am building for, and skip the call if it is not?
pthreads c-preprocessor
asked Mar 22 at 20:49
user149408user149408
2,2471129
Some POSIX thread implementations define pthread_setname_np() to set a display name for a thread. However, this seems to be a nonstandard extension.
How can I test (via preprocessor directives) if the function is available on the platform I am building for, and skip the call if it is not?
pthreads c-preprocessor
pthreads c-preprocessor
asked Mar 22 at 20:49
user149408user149408
2,2471129
asked Mar 22 at 20:49
user149408user149408
2,2471129
asked Mar 22 at 20:49
user149408user149408
2,2471129
asked Mar 22 at 20:49
user149408user149408
2,2471129
asked Mar 22 at 20:49
user149408user149408
2,2471129
2,2471129
add a comment |
add a comment |
1 Answer
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You can't test for a function existence with the preprocessor.
That kind of thing is exactly why people use build configuration tools like autoconf. The idea is that you have you build environment define a preprocessor macro like HAVE_PTHREAD_SETNAME_NP only if such a function exists, then your code can just test for that macro with #ifdef.
answered Mar 23 at 3:36
cafcaf
194k27254395
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).
– caf
Mar 24 at 22:40
add a comment |
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1 Answer
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votes
You can't test for a function existence with the preprocessor.
That kind of thing is exactly why people use build configuration tools like autoconf. The idea is that you have you build environment define a preprocessor macro like HAVE_PTHREAD_SETNAME_NP only if such a function exists, then your code can just test for that macro with #ifdef.
answered Mar 23 at 3:36
cafcaf
194k27254395
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).
– caf
Mar 24 at 22:40
add a comment |
You can't test for a function existence with the preprocessor.
That kind of thing is exactly why people use build configuration tools like autoconf. The idea is that you have you build environment define a preprocessor macro like HAVE_PTHREAD_SETNAME_NP only if such a function exists, then your code can just test for that macro with #ifdef.
answered Mar 23 at 3:36
cafcaf
194k27254395
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).
– caf
Mar 24 at 22:40
add a comment |
You can't test for a function existence with the preprocessor.
That kind of thing is exactly why people use build configuration tools like autoconf. The idea is that you have you build environment define a preprocessor macro like HAVE_PTHREAD_SETNAME_NP only if such a function exists, then your code can just test for that macro with #ifdef.
answered Mar 23 at 3:36
cafcaf
194k27254395
You can't test for a function existence with the preprocessor.
That kind of thing is exactly why people use build configuration tools like autoconf. The idea is that you have you build environment define a preprocessor macro like HAVE_PTHREAD_SETNAME_NP only if such a function exists, then your code can just test for that macro with #ifdef.
answered Mar 23 at 3:36
cafcaf
194k27254395
answered Mar 23 at 3:36
cafcaf
194k27254395
answered Mar 23 at 3:36
cafcaf
194k27254395
answered Mar 23 at 3:36
cafcaf
194k27254395
194k27254395
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).
– caf
Mar 24 at 22:40
add a comment |
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).
– caf
Mar 24 at 22:40
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
That’s about as far as I got, I wanted to know if there’s e.g. some definition in the header file that gets set (by convention) if that function is available—but apparently there isn’t.
– user149408
Mar 23 at 18:22
No, however you could perhaps test for particular C libraries and versions thereof (eg.
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).– caf
Mar 24 at 22:40
No, however you could perhaps test for particular C libraries and versions thereof (eg.
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR >= 12).– caf
Mar 24 at 22:40
add a comment |
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