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49 lines
1.1 KiB
49 lines
1.1 KiB
#include <ios> // std::ios |
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#include <memory> // std::make_unique |
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#include "inferno/assert.h" |
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#include "inferno/io/file.h" |
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namespace Inferno { |
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std::string File::read(const std::string &path) |
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{ |
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// Create input stream object and open file |
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std::ifstream ifstream(path); |
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ASSERT(ifstream.is_open(), "File could not open '{}'", path); |
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// Check if file exists |
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if (!ifstream.is_open()) { |
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return nullptr; |
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} |
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// Get length of the file |
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int32_t length = File::length(path, ifstream); |
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// Check for valid file length |
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if (length == -1) { |
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return nullptr; |
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} |
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// Allocate memory filled with zeros |
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auto buffer = std::make_unique<char[]>(length); |
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// Fill buffer with file contents |
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ifstream.read(buffer.get(), length); |
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ifstream.close(); |
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// Create string from the buffer and return |
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return std::string(buffer.get(), length); |
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} |
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int32_t File::length(const std::string& path, std::ifstream& ifstream) |
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{ |
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ifstream.seekg(0, std::ios::end); |
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int32_t length = ifstream.tellg(); |
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ifstream.seekg(0, std::ios::beg); |
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ASSERT(length != -1, "File could not determine length '{}'", path); |
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return length; |
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} |
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}
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