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2dbee75523
This is based on Item 2 of "More Effective C++". In general, the C++ cast operators are more expressive and easy to find, e.g. by grep. Using const_cast also shuts up some compiler warnings.
34 lines
748 B
C++
34 lines
748 B
C++
#include "mars.h"
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#include "mtype.h"
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#include "expression.h"
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#include "gen/warnings.h"
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void warnInvalidPrintfCall(Loc loc, Expression* arguments, size_t nargs)
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{
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Expression* arg = arguments;
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// make sure first argument is a string literal, or we can't do much
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// TODO make it smarter ?
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if (arg->op != TOKstring)
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return; // assume valid
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StringExp* strexp = static_cast<StringExp*>(arg);
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// not wchar or dhar
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if (strexp->sz != 1)
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{
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warning(loc, "printf does not support wchar and dchar strings");
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return;
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}
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#if 0
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// check the format string
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const char* str = static_cast<char*>(strexp->string);
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for (size_t i = 0; i < strexp->len; ++i)
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{
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// TODO
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}
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#endif
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}
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