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strcmpi

Header File

string.h, wchar.h

Category

Memory and String Manipulation Routines

Prototype

int strcmpi(const char *s1, const char *s2);

int _wcscmpi(const wchar_t *s1, const wchar_t *s2);

Description

Compares one string to another, without case sensitivity.

strcmpi performs an unsigned comparison of s1 to s2, without case sensitivity (same as stricmp--implemented as a macro).

It returns a value (< 0, 0, or > 0) based on the result of comparing s1 (or part of it) to s2 (or part of it).

The routine strcmpi is the same as stricmp. strcmpi is implemented through a macro in string.h and translates calls from strcmpi to stricmp. Therefore, in order to use strcmpi, you must include the header file string.h for the macro to be available. This macro is provided for compatibility with other C compilers.

Return Value

less than s2 | < 0
the same as s2 | == 0
greater than s2 | > 0

Example

Copy Code

    /* strncmpi example */
    #include <string.h>
    #include <stdio.h>
    int main(void)
    {
       char *buf1 = "BBB", *buf2 = "bbb";
       int ptr;
       ptr = strcmpi(buf2, buf1);
       if (ptr > 0)
          printf("buffer 2 is greater than buffer 1\n");
       if (ptr < 0)
          printf("buffer 2 is less than buffer 1\n");
       if (ptr == 0)
          printf("buffer 2 equals buffer 1\n");
       return 0;
    }

Portability

| POSIX | Win32 | ANSI C | ANSI C++
strcmpi |  | + |  |
_wcscmpi |  | + |  |

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