函数库使用方法

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 5
void AddExample() {
    uint32_t src1[BUFFER_SIZE_T] = {1, 2, 3, 4, 5};
    uint32_t src2[BUFFER_SIZE_T] = {1, 2, 3, 4, 5};
    uint32_t dst[BUFFER_SIZE_T];
    int32_t i, result;
    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");
}

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.1.0.0: cannot open shared object file: No such file or directory”

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： HMPP函数库使用指导