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  • // Copyright 2018 The Go Authors. All rights reserved.
    // Use of this source code is governed by a BSD-style
    // license that can be found in the LICENSE file.
    
    
    // Avoid IndexByte and IndexByteString on Plan 9 because it uses
    // SSE instructions on x86 machines, and those are classified as
    // floating point instructions, which are illegal in a note handler.
    
    //go:build !386 && (!amd64 || plan9) && !s390x && !arm && !arm64 && !loong64 && !ppc64 && !ppc64le && !mips && !mipsle && !mips64 && !mips64le && !riscv64 && !wasm
    
    
    package bytealg
    
    func IndexByte(b []byte, c byte) int {
    	for i, x := range b {
    		if x == c {
    			return i
    		}
    	}
    	return -1
    }
    
    func IndexByteString(s string, c byte) int {
    	for i := 0; i < len(s); i++ {
    		if s[i] == c {
    			return i
    		}
    	}
    	return -1
    }