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AJIOB
182473210f
We rely, that standard library have really effective `+=` and `+` operators for `std::string` with any paired arguments: `std::string`, `const char *` and `char`. So, that change just blocks `c = a + b` and `c += a` replacements, but still replaces the `c = a + b + d` and `c += a + b` and longer (with more `+` operators).
52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
#include <string>
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#include <utility>
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template <typename... Args>
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std::string cmStrCat(Args&&... args)
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{
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return "";
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}
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std::string a = "This is a string variable";
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std::string b = " and this is a string variable";
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std::string concat;
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// Correction needed
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void test1()
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{
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concat = cmStrCat(a, " and this is a string literal", 'O', b);
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concat = cmStrCat(concat, a, a);
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concat = cmStrCat(concat, " and this is a string literal", a);
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concat = cmStrCat(concat, b, 'o', a);
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concat = cmStrCat(concat, b, " and this is a string literal ", 'o', b);
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if (true)
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concat = cmStrCat(concat, a, b);
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std::pair<std::string, std::string> p;
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concat = cmStrCat(p.first, p.second, a);
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}
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// No correction needed
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void test2()
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{
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a = b;
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a = "This is a string literal";
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a = 'X';
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cmStrCat(a, b);
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concat = a + b;
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concat = a + " and this is a string literal";
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concat = a + 'O';
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concat = "This is a string literal" + b;
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concat = 'O' + a;
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concat += b;
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std::pair<std::string, std::string> p;
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concat = p.first + p.second;
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if (true)
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concat += a;
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}
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