60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SKSL_STRING
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#define SKSL_STRING
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#include "include/core/SkTypes.h"
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#include "include/private/SkSLDefines.h"
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#include <stdarg.h>
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#include <string>
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#include <string_view>
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namespace SkSL {
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bool stod(std::string_view s, SKSL_FLOAT* value);
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bool stoi(std::string_view s, SKSL_INT* value);
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namespace String {
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std::string printf(const char* fmt, ...) SK_PRINTF_LIKE(1, 2);
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void appendf(std::string* str, const char* fmt, ...) SK_PRINTF_LIKE(2, 3);
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void vappendf(std::string* str, const char* fmt, va_list va) SK_PRINTF_LIKE(2, 0);
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inline auto Separator() {
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// This returns a lambda which emits "" the first time it is called, and ", " every subsequent
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// time it is called.
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struct Output {
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const std::string fSpace, fComma;
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};
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static const Output* kOutput = new Output{{}, {", "}};
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return [firstSeparator = true]() mutable -> const std::string& {
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if (firstSeparator) {
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firstSeparator = false;
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return kOutput->fSpace;
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} else {
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return kOutput->fComma;
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}
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};
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}
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} // namespace String
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} // namespace SkSL
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namespace skstd {
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// We use a custom to_string(float|double) which ignores locale settings and writes `1.0` instead
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// of `1.00000`.
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std::string to_string(float value);
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std::string to_string(double value);
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} // namespace skstd
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#endif
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