diff options
Diffstat (limited to 'numeric.c')
| -rw-r--r-- | numeric.c | 103 |
1 files changed, 101 insertions, 2 deletions
@@ -29,6 +29,105 @@ values, including such things as replacements for the OS's atof() function #define PERL_IN_NUMERIC_C #include "perl.h" +#ifdef Perl_strtod + +PERL_STATIC_INLINE NV +S_strtod(pTHX_ const char * const s, char ** e) +{ + DECLARATION_FOR_LC_NUMERIC_MANIPULATION; + NV result; + + STORE_LC_NUMERIC_SET_TO_NEEDED(); + +# ifdef USE_QUADMATH + + result = strtoflt128(s, e); + +# elif defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \ + && defined(USE_LONG_DOUBLE) +# if defined(__MINGW64_VERSION_MAJOR) + /*********************************************** + We are unable to use strtold because of + https://sourceforge.net/p/mingw-w64/bugs/711/ + & + https://sourceforge.net/p/mingw-w64/bugs/725/ + + but __mingw_strtold is fine. + ***********************************************/ + + result = __mingw_strtold(s, e); + +# else + + result = strtold(s, e); + +# endif +# elif defined(HAS_STRTOD) + + result = strtod(s, e); + +# endif + + RESTORE_LC_NUMERIC(); + + return result; +} + +#endif /* #ifdef Perl_strtod */ + +/* + +=for apidoc my_strtod + +This function is equivalent to the libc strtod() function, and is available +even on platforms that lack plain strtod(). Its return value is the best +available precision depending on platform capabilities and F<Configure> +options. + +It properly handles the locale radix character, meaning it expects a dot except +when called from within the scope of S<C<use locale>>, in which case the radix +character should be that specified by the current locale. + +The synonym Strod() may be used instead. + +=cut + +*/ + +NV +my_strtod(const char * const s, char **e) +{ + dTHX; + + PERL_ARGS_ASSERT_MY_STRTOD; + +#ifdef Perl_strtod + + return S_strtod(aTHX_ s, e); + +#else + + { + NV result; + char ** end_ptr = NULL; + + *end_ptr = my_atof2(s, &result); + if (e) { + *e = *end_ptr; + } + + if (! *end_ptr) { + result = 0.0; + } + + return result; + } + +#endif + +} + + U32 Perl_cast_ulong(NV f) { @@ -1354,7 +1453,7 @@ S_my_atof_infnan(pTHX_ const char* s, bool negative, const char* send, NV* value } #endif assert(strNE(fake, "silence compiler warning")); - nv = Perl_strtod(fake, &endp); + nv = S_strtod(aTHX_ fake, &endp); if (fake != endp) { #ifdef NV_INF if ((infnan & IS_NUMBER_INFINITY)) { @@ -1460,7 +1559,7 @@ Perl_my_atof3(pTHX_ const char* orig, NV* value, const STRLEN len) s = copy + (s - orig); } - result[2] = Perl_strtod(s, &endp); + result[2] = S_strtod(aTHX_ s, &endp); /* If we created a copy, 'endp' is in terms of that. Convert back to * the original */ |