curl/docs/libcurl/curl_strequal.md
Daniel Stenberg e3fe020089
docs/libcurl: generate PROTOCOLS from meta-data
Remove the PROTOCOLS section from the source files completely and
instead generate them based on the header data in the curldown files.

It also generates TLS backend information for options marked for TLS as
protocol.

Closes #13175
2024-03-23 18:13:03 +01:00

60 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)
Protocol:
- All
---
# 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.