C++核心準(zhǔn)則C.162:將大致相同的操作設(shè)計(jì)為重載函數(shù)?

C.162: Overload operations that are roughly equivalent

C.162:將大致相同的操作設(shè)計(jì)為重載函數(shù)

Reason（原因）

Having different names for logically equivalent operations on different argument types is confusing, leads to encoding type information in function names, and inhibits generic programming.

邏輯上等價(jià)，只是參數(shù)不同的操作具有不同的名稱是難以理解的，會(huì)導(dǎo)致函數(shù)名中包含類型信息，而且阻礙編程共通化。

Example（示例）

Consider（考慮下面的代碼）:

void print(int a);
void print(int a, int base);
void print(const string&);

These three functions all print their arguments (appropriately). Conversely:

這三個(gè)函數(shù)都(恰當(dāng)?shù)?打印參數(shù)指定的內(nèi)容。相反地，

void print_int(int a);
void print_based(int a, int base);
void print_string(const string&);

These three functions all print their arguments (appropriately). Adding to the name just introduced verbosity and inhibits generic code.

這三個(gè)函數(shù)都(恰當(dāng)?shù)?打印參數(shù)指定的內(nèi)容。只是在函數(shù)名中增加了冗長的，阻礙共通化編程的信息。

Enforcement（實(shí)施建議）

???

原文鏈接：

https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#c162-overload-operations-that-are-roughly-equivalent

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