58 lines
1.3 KiB
Markdown
58 lines
1.3 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: curl_strequal
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- strcasecmp (3)
|
|
- strcmp (3)
|
|
---
|
|
|
|
# NAME
|
|
|
|
curl_strequal, curl_strnequal - case insensitive string comparisons
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
int curl_strequal(const char *str1, const char *str2);
|
|
int curl_strnequal(const char *str1, const char *str2, size_t length);
|
|
~~~
|
|
|
|
# DESCRIPTION
|
|
|
|
The curl_strequal(3) function compares the two strings *str1* and
|
|
*str2*, ignoring the case of the characters. It returns a non-zero (TRUE)
|
|
integer if the strings are identical.
|
|
|
|
The **curl_strnequal()** function is similar, except it only compares the
|
|
first *length* characters of *str1*.
|
|
|
|
These functions are provided by libcurl to enable applications to compare
|
|
strings in a truly portable manner. There are no standard portable case
|
|
insensitive string comparison functions. These two work on all platforms.
|
|
|
|
# EXAMPLE
|
|
|
|
~~~c
|
|
int main(int argc, char **argv)
|
|
{
|
|
const char *name = "compare";
|
|
if(curl_strequal(name, argv[1]))
|
|
printf("Name and input matches\n");
|
|
if(curl_strnequal(name, argv[1], 5))
|
|
printf("Name and input matches in the 5 first bytes\n");
|
|
}
|
|
~~~
|
|
|
|
# AVAILABILITY
|
|
|
|
Always
|
|
|
|
# RETURN VALUE
|
|
|
|
Non-zero if the strings are identical. Zero if they are not.
|