我正在尝试在C语言中使用Intel TBB。我为TBB获得的所有文档都针对C ++。TBB是否可以与普通C一起使用？如果是，我如何定义原子整数。在下面的代码中，我尝试使用模板atomic<int> counter（我知道这在C语言中不起作用）。有没有办法解决这个问题？
#include<pthread.h>
#include<stdio.h>
#include<tbb/atomic.h>
#define NUM_OF_THREADS 16
atomic<int> counter;
void *simpleCounter(void *threadId)
{
int i;
for(i=0;i<256;i++)
{
counter.fetch_and_add(1);
}
printf("T%ld \t Counter %d\n", (long) threadId, counter);
pthread_exit(NULL);
}
int main(int argc, char *argv[])
{
counter=0;
pthread_t threadArray[NUM_OF_THREADS];
long i;
for(i=0;i<NUM_OF_THREADS;i++)
{
pthread_create(&threadArray[i], NULL, simpleCounter, (void *)i);
}
pthread_exit(NULL);
}
-bash-4.1$ g++ simpleCounter.c -I$TBB_INCLUDE -Wl,-rpath,$TBB_LIBRARY_RELEASE -L$TBB_LIBRARY_RELEASE -ltbb
simpleCounter.c:7: error: expected constructor, destructor, or type conversion before ‘<’ token
simpleCounter.c: In function ‘void* simpleCounter(void*)’:
simpleCounter.c:16: error: ‘counter’ was not declared in this scope
simpleCounter.c:18: error: ‘counter’ was not declared in this scope
simpleCounter.c: In function ‘int main(int, char**)’:
simpleCounter.c:24: error: ‘counter’ was not declared in this scope
hivert是正确的，C和C ++是不同的语言。
尝试这个：
#include<pthread.h>
#include<stdio.h>
#include<tbb/atomic.h>
#define NUM_OF_THREADS 16
tbb::atomic<int> counter;
void *simpleCounter(void *threadId)
{
int i;
for(i=0;i<256;i++)
{
counter.fetch_and_add(1);
}
printf("T%ld \t Counter %d\n", (long) threadId, (int)counter);
pthread_exit(NULL);
}
int main(int argc, char *argv[])
{
counter=0;
pthread_t threadArray[NUM_OF_THREADS];
long i;
for(i=0;i<NUM_OF_THREADS;i++)
{
pthread_create(&threadArray[i], NULL, simpleCounter, (void *)i);
}
for(i=0;i<NUM_OF_THREADS;i++)
pthread_join(threadArray[i], nullptr);
}
用.cpp扩展名保存（g ++不需要）。我修改了缺少的名称空间tbb :: atomic，最后还加入了一个连接，以等待所有线程完成后再退出main。它应该现在编译。将-std = c ++ 11添加为编译器选项，或将nullptr更改为NULL。
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我来说两句