c - Compilers C99 GNU99 -

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any appreciated. in advance

i not able use functions in time.h inside kernel.cl file

my main.cpp able use includes.

my time.h is /usr/include , have tried using std=gnu99, somehow still thinking using c99

my kernel.cl has

#include "time.h"                                                                #define _posix_c_source >= 199309l****   ..... ..... struct timespec tp_start, tp_end;                                               clock_gettime(clock_monotonic, &tp_start);

and errors are

g++  -c -o3 -fopenmp -i/usr/include main.cpp  echo compiling main.cpp  compiling main.cpp  cl6x -mv6600 --abi=eabi -i/include  -i/usr/share/ti/cgt-c6x/include -i/usr/share/ti/opencl -i/usr/include  -c -o3 ccode.c  echo compiling ccode.c  compiling ccode.c  clocl  -i/usr/include -std=gnu99  kernel.cl ccode.obj  kernel.cl:50:17: error: variable has incomplete type 'struct timespec'  kernel.cl:50:8: note: forward declaration of 'struct timespec'  kernel.cl:50:27: error: variable has incomplete type 'struct timespec'  kernel.cl:50:8: note: forward declaration of 'struct timespec'  kernel.cl:51:1: warning: implicit declaration of function 'clock_gettime' invalid in c99  kernel.cl:51:15: error: use of undeclared identifier 'clock_monotonic

you compiling texas instruments-specific compiler use embedded device. manpage clock_gettime() on linux implies not posix systems implement api, , tells how check:

"on posix systems on these functions available, symbol _posix_timers defined in value greater 0. symbols _posix_monotonic_clock, _posix_cputime, _posix_thread_cputime indicate clock_monotonic, clock_process_cputime_id, clock_thread_cputime_id available. (see sysconf(3).)"

so, if _posix_timers in unistd.h 0 or undefined, routine not available on device standard library provided compiler.


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