tools

commit 869354f878ec5eea53d6448a2541f94caae1b72d
parent 3d499e3c0412d4fb75ee7e095644eca356017dfc
Author: Morel Bérenger <berengermorel76@gmail.com>
Date:   Wed, 12 Aug 2020 20:56:40 +0200

typedef vector<char> string + helpers

Diffstat:
A
btl/src/string.cpp
 | 
94
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
btl/src/string.hpp
 | 
28
++++++++++++++++++++++++++++

2 files changed, 122 insertions(+), 0 deletions(-)
diff --git a/btl/src/string.cpp b/btl/src/string.cpp
@@ -0,0 +1,94 @@
+#include <utility>
+#include <memory>
+
+#include <string.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+
+#include "vector.hpp"
+#include "string.hpp"
+
+string make_string( char const* str )
+{
+	string ret;
+	ret.assign( str, str + strlen( str ) );
+	return ret;
+}
+
+string make_string( wchar_t const* str )
+{
+	string ret;
+	size_t str_sz = wcslen( str );
+	std::unique_ptr<char> temp( static_cast<char*>(  malloc( str_sz +1 ) ) );
+	size_t sz = wcstombs( temp.get(), str, str_sz );
+	assert( sz == str_sz );
+	ret.assign( temp.get(), temp.get() + sz );
+	return ret;
+}
+
+string to_string( int32_t i )
+{
+	int n = snprintf( nullptr, 0, "%d", i );
+	assert( n >= 0 );
+	++n;
+	size_t sz = static_cast<size_t>( n );
+	string ret;
+	if( ret.resize( sz ) )
+	{
+		return ret;
+	}
+	snprintf( ret.data(), sz, "%d", i );
+	ret.pop_back();
+	return ret;
+}
+
+string to_string( uint32_t i )
+{
+	int n = snprintf( nullptr, 0, "%u", i );
+	assert( n >= 0 );
+	++n;
+	size_t sz = static_cast<size_t>( n );
+	string ret;
+	if( ret.resize( sz ) )
+	{
+		return ret;
+	}
+	snprintf( ret.data(), sz, "%u", i );
+	ret.pop_back();
+	return ret;
+}
+
+string& operator+=( string& lhs, char const* rhs )
+{
+	append( lhs, rhs, rhs + strlen( rhs ) );
+	return lhs;
+}
+
+string& operator+=( string& lhs, char rhs )
+{
+	append( lhs, rhs );
+	return lhs;
+}
+
+string& operator+=( string& lhs, string const& rhs )
+{
+	append( lhs, rhs );
+	return lhs;
+}
+
+string& operator+=( string& lhs, string && rhs )
+{
+	append( lhs, rhs );
+	return lhs;
+}
+
+string operator+( char const* lhs, string const& rhs )
+{
+	string ret;
+	ret.assign( lhs, lhs + strlen( lhs ) );
+	ret += rhs;
+	return ret;
+}
diff --git a/btl/src/string.hpp b/btl/src/string.hpp
@@ -0,0 +1,28 @@
+#ifndef STRING_HPP
+#define STRING_HPP
+
+typedef vector<char> string;
+
+string make_string( char const* str );
+string make_string( wchar_t const* str );
+
+string to_string( int32_t i );
+string to_string( uint32_t i );
+
+string& operator+=( string& lhs, char const* rhs );
+string& operator+=( string& lhs, char rhs );
+string& operator+=( string& lhs, string const& rhs );
+string& operator+=( string& lhs, string && rhs );
+
+//TODO: make a template
+template <typename T>
+string operator+( string const& lhs, T rhs )
+{
+	string ret( lhs );
+	ret += rhs;
+	return ret;
+}
+
+string operator+( char const* lhs, string const& rhs );
+
+#endif