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# FcStrStrIgnoreCase

## Name

FcStrStrIgnoreCase -- locate UTF-8 substring ignoring ASCII case

## Synopsis

    #include <fontconfig.h>

``FcChar8 * FcStrStrIgnoreCase`(const char *s1, const char *s2);`

## Description

Returns the location of `s2` in `s1`, ignoring ASCII case. Returns NULL if `s2` is not present in `s1`. This test is case-insensitive in the ASCII range and will operate properly with UTF8 encoded strings, although it does not check for well formed strings.

## Version

Fontconfig version 2.4.2

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