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1//
2// cputs.cpp
3//
4// Copyright (c) Microsoft Corporation. All rights reserved.
5//
6// Defines _cputs(), which writes a string directly to the console.
7//
8#include <conio.h>
9#include <corecrt_internal_lowio.h>
10
11// Writes the given string directly to the console. No newline is appended.
12// Returns 0 on success; nonzero on failure.
13extern "C" int __cdecl _cputs(char const* const string)
14{
15 _VALIDATE_CLEAR_OSSERR_RETURN(string != nullptr, EINVAL, -1);
16
17 __acrt_lock(__acrt_conio_lock);
18 int result = 0;
19 __try
20 {
21 // Write the string directly to the console. Each character is written
22 // individually, as performance of this function is not considered
23 // critical.
24 for (char const* p = string; *p; ++p)
25 {
26 if (_putch_nolock(*p) == EOF)
27 {
28 result = -1;
29 __leave;
30 }
31 }
32 }
33 __finally
34 {
35 __acrt_unlock(__acrt_conio_lock);
36 }
37 __endtry
38 return result;
39}