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42 lines
770 B
C++
42 lines
770 B
C++
// Copyright Benoit Blanchon 2014-2017
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// MIT License
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//
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// Arduino JSON library
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// https://bblanchon.github.io/ArduinoJson/
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// If you like this project, please add a star!
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#pragma once
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#include "./ctype.hpp"
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namespace ArduinoJson {
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namespace Polyfills {
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inline bool isFloat(const char* s) {
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if (!s) return false;
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if (!strcmp(s, "NaN")) return true;
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if (issign(*s)) s++;
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if (!strcmp(s, "Infinity")) return true;
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while (isdigit(*s)) s++;
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bool has_dot = *s == '.';
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if (has_dot) {
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s++;
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while (isdigit(*s)) s++;
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}
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bool has_exponent = *s == 'e' || *s == 'E';
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if (has_exponent) {
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s++;
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if (issign(*s)) s++;
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if (!isdigit(*s)) return false;
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while (isdigit(*s)) s++;
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}
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return (has_dot || has_exponent) && *s == '\0';
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}
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}
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}
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