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C/C++ difference's between strncmp() and strcmp.
strncmp() and strcmp compares two strings using ASCII character comparison. strncmp takes one additional parameter as number to characters upto which a string is to be compared. It is very useful as if a string is not valid, then strcmp will not be able to complete its operation. strcmp searches for end character ('/0') at string end to finish its operation. strncmp uses no. of characters to end its operation and thus is safe.
Example
#include <stdio.h>
int main() {
char str1[] = "TutorialsPoint";
char str2[] = "Tutorials";
// Compare strings with strncmp()
int result1 = strncmp(str1, str2, 9);
if(result1 == 0){
printf("str1 == str2 upto 9 characters!\n");
}
// Compare strings using strcmp()
int result2 = strcmp(str1, str2);
if(result2 == 0){
printf("str1 == str2!\n");
} else {
if(result2 > 0){
printf("str1 > str2!\n");
} else {
printf("str1 < str2!\n");
}
}
return 0;
}Output
str1 == str2 upto 9 characters! str1 > str2!
Updated on: 06-Jan-2020
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