junmoyo

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main(void)

{

char szBuffer1[256] = "eHll oJ nuoMzz i! ";//{ 'H','e','l','l','o', 0, }; //hello

  // eHll oJ nuoMzz i! "

char szBuffer2[256] = { 0, };

int strlength = 0;

puts(szBuffer1);

puts("---swab---");

strlength = strlen(szBuffer1);

_swab(szBuffer1, szBuffer2, strlength);

puts(szBuffer2);

return 0;

}

#include <stdio.h>

#include <ctype.h>

int main(void)

{

unsigned char szBuffer[] = " Hello\tMozzi \n";

int nSpaceCount = 0;

unsigned char szString[256] = { 0, };

unsigned char *pTemp = szBuffer;

int nStringCount = 0;

int nResult = 0;

puts(pTemp);

while (*pTemp != '\0')

{

nResult = (int)isspace((int)*pTemp);

//공백,\t, \n 8 기타0 

if (nResult == 8)

{

nSpaceCount++;

}

else

{

szString[nStringCount] = *pTemp;

nStringCount++;

}

++pTemp;

}

puts(szString);

printf("find space : %d\n", nSpaceCount);

return 0;

}

#include <stdio.h>

#include <ctype.h>

int main(void)

{

unsigned char szString[] = "Hello JunmoZzi!";

unsigned char szLower[256] = { 0, };

unsigned char szUpper[256] = { 0, };

unsigned char *pTemp = szString;

int nLowerCount = 0;

int nUpperCount = 0;

puts(pTemp);

unsigned char find = 0;

while (*pTemp != '\0')

{

find = (int)islower((int)*pTemp);

if (find)//소문자는 2

{

szLower[nLowerCount] = *pTemp;

++nLowerCount;

}

find = (int)isupper((int)*pTemp);

if (find)//대문자 1

{

szUpper[nUpperCount] = *pTemp;

++nUpperCount;

}

pTemp++;

}

puts(szLower);

puts(szUpper);

return 0;

}

#include <stdio.h>

#include <ctype.h>

int main(void)

{

char *pString = "phone 010-1234-5678";

char szString[256] = { 0, };

char szNumber[256] = { 0, };

char* pTemp = pString;

int count = 0;

int string_count = 0;

int number_count = 0;

puts(pString);

puts("analysis");

while (*pTemp != '\0')

{

count = isalnum(*pTemp);

if (count == 2)

{

szString[string_count] = *pTemp;

++string_count;

}

else if (count == 4)

{

szNumber[number_count] = *pTemp;

++number_count;

}

++pTemp;

}

puts(szString);

puts(szNumber);

return 0;

}

#include <stdio.h>

#include <ctype.h>

int main(void)

{

char *pString = "phone 010-1234-5678";

char szString[256] = { 0, };

char szNumber[256] = { 0, };

char* pTemp = pString;

int count = 0;

int string_count = 0;

int number_count = 0;

puts(pString);

puts("analysis");

while (*pTemp != '\0')

{

count = isalpha(*pTemp);

count = isdigit(*pTemp);

if (isalpha(*pTemp))

{

szString[string_count] = *pTemp;

++string_count;

}

else if (isdigit(*pTemp))

{

szNumber[number_count] = *pTemp;

++number_count;

}

++pTemp;

}

puts(szString);

puts(szNumber);

return 0;

}

#include <stdio.h>

#include <stdlib.h>

int main(void)

{

char *pString_1 = "12.3 4.56 789.0";

char *pString_2 = "12.354";

float fValue_1 = 0.0f;

char* pPoint = pString_1;

float fBuffer_1[256] = { 0, };

float fBuffer_2[256] = { 0, };

int count = 0;

fValue_1 = atof(pString_2);

printf("%f \n", fValue_1);

for (count = 0; ;count++)

{

fBuffer_1[count] = strtof(pPoint, &pPoint);

if (fBuffer_1[count] == 0.0f)

{

break;

}

printf("%f \n", fBuffer_1[count]);

}

pPoint = pString_1;

for (count = 0; ;count++)

{

fBuffer_2[count] = strtof(pPoint, &pPoint);

if (fBuffer_2[count] == 0.0f)

{

break;

}

printf("%f\n", fBuffer_2[count]);

}

return 0;

}

#include <stdio.h>

#include<stdlib.h>

int main(void)

{

char * pString = "-0xfff 0xffff 0xfffffff";

char * pStop = NULL;

unsigned long lNum1 = 0;

unsigned long lNum2 = 0;

unsigned long lNum3 = 0;

printf("문자열 : %s \n", pString);

lNum1 = strtoul(pString, &pStop, 16); //마지막 인자는 진수입니다.

lNum2 = strtoul(pStop, &pStop, 16);  // 들어 있는 진수를 잘파악하는것도

lNum3 = strtoul(pStop, &pStop, 16);  // 잊으면안되요

printf("첫번째 추출 : %u \n", lNum1);// -로 인해서 최대 치가 출력됩니다.

printf("두번째 추출 : %u \n", lNum2);

printf("세번째 추출 : %u \n", lNum3);

return 0;

}

#include <stdio.h>

#include<stdlib.h>

int main(void)

{

char * pString = "0xff 0xfff 0xffff";

char * pStop = NULL;

long lNum1 = 0;

long lNum2 = 0;

long lNum3 = 0;

printf("문자열 : %s \n", pString);

lNum1 = strtol(pString, &pStop, 16); //마지막 인자는 진수입니다.

lNum2 = strtol(pStop, &pStop, 16);  // 들어 있는 진수를 잘파악하는것도

lNum3 = strtol(pStop, &pStop, 16);  // 잊으면안되요

printf("첫번째 추출 : %d \n", lNum1);

printf("두번째 추출 : %d \n", lNum2);

printf("세번째 추출 : %d \n", lNum3);

return 0;

}