printf("%llu leon %d\n", a, rc);//out: 4294967298 leon -5printf("%d leon %d\n", a, rc);//out: 2 leon 1printf("%d again %d %d\n", a,rc);//out: 2 again 1 -5uint32_t b ; memcpy(&b, &a,sizeof(uint32_t)); printf("%d kjfsfljs\n", b);//out: 2 kjfsfljs (...
j和整数转换说明符一起使用 表示一个intmax_t或者uintmax_t类型的数值 ,示例:%jd,%8jx l和整数转换说明符一起使用 表示一个long int 或者unsigned long int类型的数值 ,示例:%ld,%8lu ll和整数转换说明符一起使用 表示一个long int 或者unsigned long int类型的数值 (C99),示例:%lld,%8llu L和浮点转换...
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Cast unsigned char (uint8 *) pointer to unsigned long (uint32 *) pointer CFileDialog and OFN_ALLOWMULTISELECT Change button background in MFC application Change default font type in dialog template for C++ resource editor Change Integrity level in current process (UIAccess) Change path to source ...
{uint32_t attr = le32_to_cpu(ph->attributes);unsigned long len = le32_to_cpu(ph->len) * 4;unsigned long len_enc = le32_to_cpu(ph->len_enc) * 4;unsigned long len_unenc = le32_to_cpu(ph->len_unenc) * 4; const char *part_owner; ...
void put_char(uint8_t char_asci); void put_str(char* message); void put_int(uint32_t num); //以十六进制打印 #endif 给出了三个接口,对应字符、字符串、数字三种打印 其中#include"stdint.h"是引用了我们自定义的一个专门用于统一类型名称的头文件,内容如下: ...
虽然linux系统的默认标准输出设备是显示器,但是我们可以把printf打印输出的内容重定向到其他设备或文件。方法如下: 方法1: 打开一个普通文件,把它的文件描述符指定为标准输出的文件描述符,这样printf打印输出的数据会重定向到这个普通文件。 示例如下: //实现printf打印输出重定向功能示例1 ...
int len = vsprintf((char *) txBuf, string, arg); va_end(arg); UARTSend((uint8_t *) txBuf, len); COLOR_ENDL(); } My question is that when I print message through UART, I get the flowing issue. My baudrate in my ter...
ps: %xx 打印格式需要看源码 ngx_vslprintf() 函数、对一些标准c格式重定义并实现。 基本实现代码如下: // 增加一个额外的log时间信息获取函数 u_char *ngx_log_time() { u_char* p; ngx_tm_t tm; time_t sec; ngx_uint_t msec; struct timeval tv; ...
#include<stdio.h>#include<inttypes.h>intmain(){union{floatf;uint32_tu32; } test; test.f =5.0;printf("first print test data is %08"PRIx32" test %p\n", test.u32, (void*)&test);//fflush(stdout);printf("second print test data is %08"PRIx32" test %p\n",...