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#include <string.h>
#include <stdio.h>
void printHexString(const void* buf , size_t size);
int main()
{
char* pstr = new char[64];
printHexString(pstr , 64);
const char* ps = "Hello World!";
printHexString(ps , 20);
char* pstr2 = new char[64];
printHexString(pstr2 , 64);
return 0;
}
void printHexString(const void* buf , size_t size)
{
char* str = (char*)buf;
char line[512] = {0};
const size_t lineLength = 16; // 8或者
char text[24] = {0};
char* pc;
int textLength = lineLength;
for (size_t ix = 0 ; ix < size ; ix += lineLength)
{
sprintf(line, "%.8xh: ", ix);
// 打印进制
for (size_t jx = 0 ; jx != lineLength ; jx++)
{
if (ix + jx >= size)
{
sprintf(line + (11 + jx * 3), " "); // 处理最后一行空白
if (ix + jx == size)
textLength = jx; // 处理最后一行文本截断
} else
sprintf(line + (11 + jx * 3), "%.2X ", * (str + ix + jx));
}
// 打印字符串
{
memcpy(text, str + ix, lineLength);
pc = text;
while (pc != text + lineLength)
{
if ((unsigned char)*pc < 0x20) // 空格之前为控制码
*pc = '.'; // 控制码转成'.'显示
pc++;
}
text[textLength] = ' ';
sprintf(line + (11 + lineLength * 3), "; %sn", text);
}
printf("%s", line);
}
}
原文链接: https://www.cnblogs.com/guyan/archive/2012/05/14/2500517.html
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