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새싹교실/2020/새싹부터나무까지/민기범/실습/20.10.09

Difference between r1.10 and the current

@@ -1,5 +1,6 @@
== 1-1 ==
//문자열 처리 함수 strcpy
== 1 == 
{{{
//strcpy

char strcpy(char* dest, char* source) {
char* dptr = dest;
@@ -8,7 +9,47 @@
} while (*source);
return dest;
}
}}}
== 1-2 ==
{{{
//strlen
 
char strlen(char* dest) {
int length = 0;
for (int i = 0; dest[i] != '\0'; i++) {
length++;
}
return length;
}
}}}
== 1-3 ==
{{{
//strcat
 
char* strcat(char* dest, const char* source) {
char* tmp = dest;
 
while (*dest)
dest++;
while (*source != '\0')
(*dest++ = *source++);
return tmp;
}
}}}

== 1-4 ==
{{{
//strcmp
 
int strcmp(char* dest, const char* source) {
do {
if (*dest++ < *source++)
return 1;
else if (*dest++ > * source++)
return -1;
} while (*dest != '\0');
 
return 0;
}
}}}



1

//strcpy

char strcpy(char* dest, char* source) {
	char* dptr = dest;
	do {
		*dptr++ = *(source++);
	} while (*source);
	return dest;
}

1-2

//strlen

char strlen(char* dest) {
	int length = 0;
	for (int i = 0; dest[i] != '\0'; i++) {
		length++;
	}
	return length;
}

1-3

//strcat

char* strcat(char* dest, const char* source) {
	char* tmp = dest;

	while (*dest)
		dest++;
	while (*source != '\0')
		(*dest++ = *source++);
	return tmp;
}

1-4

//strcmp

int strcmp(char* dest, const char* source) {
	do {
		if (*dest++ < *source++)
			return 1;
		else if (*dest++ > * source++)
			return -1;
	} while (*dest != '\0');

	return 0;
}

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