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Fix type safety when using custom formatters (#394)

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This commit is contained in:
Victor Zverovich
2016-10-07 08:37:06 -07:00
parent 506435bf71
commit dafbec7553
6 changed files with 143 additions and 116 deletions
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16
test/custom-formatter-test.cc
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@@ -45,10 +45,13 @@ class CustomPrintfArgFormatter :
}
};
std::string custom_vformat(const char *format_str, fmt::format_args args) {
typedef fmt::BasicFormatter<char, CustomArgFormatter> CustomFormatter;
std::string custom_vformat(const char *format_str,
fmt::basic_format_args<CustomFormatter> args) {
fmt::MemoryWriter writer;
// Pass custom argument formatter as a template arg to BasicFormatter.
fmt::BasicFormatter<char, CustomArgFormatter> formatter(args, writer);
CustomFormatter formatter(args, writer);
formatter.format(format_str);
return writer.str();
}
@@ -59,9 +62,14 @@ std::string custom_format(const char *format_str, const Args & ... args) {
return custom_vformat(format_str, va);
}
std::string custom_vsprintf(const char* format_str, fmt::format_args args) {
typedef fmt::PrintfFormatter<char, CustomPrintfArgFormatter>
CustomPrintfFormatter;
std::string custom_vsprintf(
const char* format_str,
fmt::basic_format_args<CustomPrintfFormatter> args) {
fmt::MemoryWriter writer;
fmt::PrintfFormatter<char, CustomPrintfArgFormatter> formatter(args, writer);
CustomPrintfFormatter formatter(args, writer);
formatter.format(format_str);
return writer.str();
}