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[update][libc] enable float printf as default

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This commit is contained in:
jzlv 2022-11-05 10:50:06 +08:00
parent b7aa2e1d79
commit 1c16383805
1 changed files with 22 additions and 7 deletions
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29
utils/libc/vsnprintf.c
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@ -55,7 +55,7 @@
// Support for the decimal notation floating point conversion specifiers (%f, %F)
#ifndef CONFIG_LIBC_FLOAT
#define CONFIG_LIBC_FLOAT 0
#define CONFIG_LIBC_FLOAT 1
#endif
// Support for the exponential notatin floating point conversion specifiers (%e, %g, %E, %G)
@ -73,7 +73,7 @@
// possibly hundreds of characters, potentially overflowing your buffers. In this implementation,
// all values beyond this threshold are switched to exponential notation.
#ifndef PRINTF_MAX_INTEGRAL_DIGITS_FOR_DECIMAL
#define PRINTF_MAX_INTEGRAL_DIGITS_FOR_DECIMAL 0
#define PRINTF_MAX_INTEGRAL_DIGITS_FOR_DECIMAL 9
#endif
// Support for the long long integral types (with the ll, z and t length modifiers for specifiers
@ -82,6 +82,19 @@
#define CONFIG_LIBC_LONG_LONG 1
#endif
#ifndef PRINTF_SUPPORT_LENGTH_FILED
#define PRINTF_SUPPORT_LENGTH_FILED 1
#endif
#ifndef PRINTF_SUPPORT_CHAR
#define PRINTF_SUPPORT_CHAR 1
#endif
#ifndef PRINTF_SUPPORT_ADDR
#define PRINTF_SUPPORT_ADDR 1
#endif
#if CONFIG_LIBC_LONG_LONG
typedef unsigned long long printf_unsigned_value_t;
typedef long long printf_signed_value_t;
@ -843,7 +856,7 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
format++;
}
}
#if PRINTF_SUPPORT_LENGTH_FILED
// evaluate length field
switch (*format) {
case 'l' :
@ -877,7 +890,7 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
default:
break;
}
#endif
// evaluate specifier
switch (*format) {
case 'd' :
@ -972,6 +985,8 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
format++;
break;
#endif // CONFIG_LIBC_FLOAT_EX
#if PRINTF_SUPPORT_CHAR
case 'c' : {
unsigned int l = 1U;
// pre padding
@ -991,7 +1006,7 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
format++;
break;
}
#endif
case 's' : {
const char* p = va_arg(va, char*);
if (p == NULL) {
@ -1022,7 +1037,7 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
format++;
break;
}
#if PRINTF_SUPPORT_ADDR
case 'p' : {
width = sizeof(void*) * 2U + 2; // 2 hex chars per byte + the "0x" prefix
flags |= FLAGS_ZEROPAD | FLAGS_POINTER;
@ -1033,7 +1048,7 @@ static int __vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, cons
format++;
break;
}
#endif
case '%' :
out('%', buffer, idx++, maxlen);
format++;