Question

此处的代码：http://ideone.com/AZnXFm

 @Bean
    public Server rsServer() {
        JAXRSServerFactoryBean endpoint = new JAXRSServerFactoryBean();
        endpoint.setBus(bus);
        endpoint.setProvider(new JacksonJsonProvider());
        endpoint.setServiceBeans(asList(new CustomerServiceDefault()));
        endpoint.setAddress("/");
        endpoint.setFeatures(asList(new Swagger2Feature()));
        return endpoint.create();
    }

输出

#include <stdio.h>
#include <stdlib.h>
#include<string.h>

int main()
{
    char *buffer;
    size_t bufsize = 32;
    size_t characters;

    buffer = (char *)malloc(bufsize * sizeof(char));
    if( buffer == NULL)
    {
        perror("Unable to allocate buffer");
        exit(1);
    }

    printf("Type something: ");
    characters = getline(&buffer,&bufsize,stdin);
    printf("%zu characters were read.\n",characters);
    printf("You typed: %s",buffer);


    char *end_str,*token2;
    char *token = strtok_r(buffer,";",&end_str);
        printf("token : %s \n", token);
    int count =0,wordcnt=0;
    while(token !=NULL)
    {
        char *end_token;
        count++;
        printf("outside count ------------------------%d\n", count);
        strtok_r(token," ",&end_token);
        while(token2!=NULL)
        {
            wordcnt++;
            printf("insdie count %d\n",wordcnt);
            printf("%s------------------- \n", token2);
            token2 = strtok_r(NULL," ",&end_token);
        }
        token = strtok_r(NULL, ";",&end_str);
    }

    return(0);
}

Answer 1

以下代码中需要或已应用了许多基本修复：

让getline()进行内存分配。
检查getline()是否读了一行。
释放已分配的内存。
使用内部token2电话设置strtok_r()。
使变量名称更加系统化。
将characters设为ssize_t以匹配getline()的回复。
使用characters打印%zd。这有点争议;它使用size_t - 限定的带符号十进制格式字符串打印带有z的带符号变体。它是有道理的（至少对我来说和我的编译器 - macOS Sierra上的GCC 6.2.0），但我不确定在哪里可以找到它被（POSIX）标准正式批准的确认。
重命名变量以保持一致性。
其他小型化妆品修补程序（打印格式仍然可以改进 - 非常多）。

导致：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void)
{
    char *buffer = 0;
    size_t bufsize = 0;
    ssize_t characters;

    printf("Type something: ");
    characters = getline(&buffer, &bufsize, stdin);
    printf("%zd characters were read.\n", characters);
    if (characters > 0)
    {
        printf("You typed: %s", buffer);

        char *end_str1;
        char *token1 = strtok_r(buffer, ";", &end_str1);
        printf("token: %s \n", token1);
        int count = 0, wordcnt = 0;
        while (token1 != NULL)
        {
            char *end_str2;
            count++;
            printf("outside count ------------------------%d\n", count);
            char *token2 = strtok_r(token1, " ", &end_str2);
            while (token2 != NULL)
            {
                wordcnt++;
                printf("inside count %d\n", wordcnt);
                printf("%s------------------- \n", token2);
                token2 = strtok_r(NULL, " ", &end_str2);
            }
            token1 = strtok_r(NULL, ";", &end_str1);
        }
    }
    free(buffer);

    return(0);
}

示例运行：

Type something: rosie is; really good
22 characters were read.
You typed: rosie is; really good
token: rosie is 
outside count ------------------------1
inside count 1
rosie------------------- 
inside count 2
is------------------- 
outside count ------------------------2
inside count 3
really------------------- 
inside count 4
good
-------------------

嵌套strtok_r：命令行参数解析

1 个答案: