接口调用示例

创建test.cpp文件。

test.cpp文件中添加以下代码内容。

#include "hmpp.h"
#define BUFFER_SIZE_T 500
void AddExample() {
    uint32_t *src1 = HMPPS_Malloc_32u(BUFFER_SIZE_T);
    uint32_t *src2 = HMPPS_Malloc_32u(BUFFER_SIZE_T);
    uint32_t *dst = HMPPS_Malloc_32u(BUFFER_SIZE_T);
    int32_t i, result;

    if (src1 == NULL || src2 == NULL || dst == NULL) {
        return;
    }
    for (i = 0; i < BUFFER_SIZE_T; ++i) {
         src1[i] = i;
         src2[i] = i + 1;
    }
    
    result = HMPPS_Add_32u(src1, src2, dst, BUFFER_SIZE_T);
    printf("result = %d \n dst = ", result);
    for (i = 0; i < BUFFER_SIZE_T; i++) {
        printf("%d ", dst[i]);
    }
    printf("\n");

    HMPPS_Free(src1);
    HMPPS_Free(src2);
    HMPPS_Free(dst);
}

int main(void){
    AddExample();
    return 0;
}

编译并执行示例

编译文件。

g++ test.cpp -o test -lHMPP_fft -lHMPP_fftf -lHMPP_signal -lHMPP_core -lHMPP_image

执行文件。

./test

问题解决

问题现象：

“fatal error: hmpp.h: No such file or directory”
“./test: error while loading shared libraries: libHMPP_core.so.xxxx: cannot open shared object file: No such file or directory”

上述现象结果中涉及的xxxx代表版本号。

处理步骤：

在“/usr/local/include/HMPP”和“/usr/local/lib/HMPP”目录查找是否存在头文件和动态库。

在/etc/profile中添加如下环境变量。

export C_INCLUDE_PATH=$C_INCLUDE_PATH:/usr/local/include/HMPP
export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/local/include/HMPP
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/HMPP
export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/lib/HMPP

使配置文件生效。
```
source /etc/profile
```

父主题： 函数库使用方法