Fix compilation on platforms with exotic double (#878)
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@ -513,7 +513,8 @@ FMT_FUNC void grisu2_gen_digits(
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}
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}
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FMT_FUNC void grisu2_format_positive(double value, char *buffer, size_t &size,
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template <typename Double>
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FMT_FUNC void grisu2_format_positive(Double value, char *buffer, size_t &size,
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int &dec_exp) {
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FMT_ASSERT(value > 0, "value is nonpositive");
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fp fp_value(value);
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@ -640,8 +641,10 @@ FMT_FUNC void grisu2_prettify(char *buffer, size_t &size, int exp,
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// Formats a nonnegative value using Grisu2 algorithm. Grisu2 doesn't give any
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// guarantees on the shortness of the result.
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FMT_FUNC void grisu2_format(double value, char *buffer, size_t &size, char type,
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int precision, bool write_decimal_point) {
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template <typename Double>
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FMT_FUNC typename std::enable_if<sizeof(Double) == sizeof(uint64_t)>::type
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grisu2_format(Double value, char *buffer, size_t &size, char type,
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int precision, bool write_decimal_point) {
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FMT_ASSERT(value >= 0, "value is negative");
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int dec_exp = 0; // K in Grisu.
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if (value > 0) {
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@ -293,8 +293,13 @@ inline bool use_grisu() {
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// Formats value using Grisu2 algorithm:
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// https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf
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FMT_API void grisu2_format(double value, char *buffer, size_t &size, char type,
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int precision, bool write_decimal_point);
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template <typename Double>
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FMT_API typename std::enable_if<sizeof(Double) == sizeof(uint64_t)>::type
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grisu2_format(Double value, char *buffer, size_t &size, char type,
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int precision, bool write_decimal_point);
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template <typename Double>
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inline typename std::enable_if<sizeof(Double) != sizeof(uint64_t)>::type
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grisu2_format(Double, char *, size_t &, char, int, bool) {}
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template <typename Allocator>
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typename Allocator::value_type *allocate(Allocator& alloc, std::size_t n) {
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@ -102,6 +102,11 @@ TEST(FPTest, GetCachedPower) {
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}
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}
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TEST(FPTest, Grisu2FormatCompilesWithNonIEEEDouble) {
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size_t size = 0;
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fmt::internal::grisu2_format(4.2f, FMT_NULL, size, 0, 0, false);
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}
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template <typename T>
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struct ValueExtractor: fmt::internal::function<T> {
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T operator()(T value) {
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