1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_STRINGS_STRINGPRINTF_H_
#define BASE_STRINGS_STRINGPRINTF_H_
#include <stdarg.h> // va_list
#include <string>
#include <string_view>
#include "base/base_export.h"
#include "base/check.h"
#include "base/compiler_specific.h"
#include "third_party/abseil-cpp/absl/strings/str_format.h"
namespace base {
// Returns a C++ string given `printf()`-like input. The format string must be a
// compile-time constant (like with `std::format()`), or this will not compile.
// TODO(crbug.com/40241565): Replace calls to this with direct calls to
// `absl::StrFormat()` and remove.
template <typename... Args>
[[nodiscard]] std::string StringPrintf(const absl::FormatSpec<Args...>& format,
const Args&... args) {
return absl::StrFormat(format, args...);
}
// Returns a C++ string given `vprintf()`-like input.
[[nodiscard]] PRINTF_FORMAT(1, 0) BASE_EXPORT std::string
StringPrintV(const char* format, va_list ap);
// Like `StringPrintf()`, but appends result to a supplied string.
// TODO(crbug.com/40241565): Replace calls to this with direct calls to
// `absl::StrAppendFormat()` and remove.
template <typename... Args>
void StringAppendF(std::string* dst,
const absl::FormatSpec<Args...>& format,
const Args&... args) {
absl::StrAppendFormat(dst, format, args...);
}
// Like `StringPrintV()`, but appends result to a supplied string.
PRINTF_FORMAT(2, 0)
BASE_EXPORT
void StringAppendV(std::string* dst, const char* format, va_list ap);
} // namespace base
#endif // BASE_STRINGS_STRINGPRINTF_H_
|
