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add (v)sscanf #654

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df22afa
added PRI24 and SCN24 to <inttypes.h>
ZERICO2005 Oct 4, 2025
4685c87
added (v)sscanf
ZERICO2005 Oct 4, 2025
e32f31d
updated float handling in sscanf and fixed endptr for strto(f/d/ld)
ZERICO2005 Oct 7, 2025
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17 changes: 17 additions & 0 deletions src/libc/include/inttypes.h
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,15 @@
#define PRIxLEAST16 __UINT_LEAST16_FMTx__
#define PRIXLEAST16 __UINT_LEAST16_FMTX__

#ifdef __INT24_TYPE__
#define PRId24 __INT24_FMTd__
#define PRIi24 __INT24_FMTi__
#define PRIo24 __UINT24_FMTo__
#define PRIu24 __UINT24_FMTu__
#define PRIx24 __UINT24_FMTx__
#define PRIX24 __UINT24_FMTX__
#endif /*__INT24_TYPE_*/

#define PRId32 __INT32_FMTd__
#define PRIi32 __INT32_FMTi__
#define PRIo32 __UINT32_FMTo__
Expand Down Expand Up @@ -126,6 +135,14 @@
#define SCNuLEAST16 __UINT_LEAST16_FMTu__
#define SCNxLEAST16 __UINT_LEAST16_FMTx__

#ifdef __INT24_TYPE__
#define SCNd24 __INT24_FMTd__
#define SCNi24 __INT24_FMTi__
#define SCNo24 __UINT24_FMTo__
#define SCNu24 __UINT24_FMTu__
#define SCNx24 __UINT24_FMTx__
#endif /*__INT24_TYPE_*/

#define SCNd32 __INT32_FMTd__
#define SCNi32 __INT32_FMTi__
#define SCNo32 __UINT32_FMTo__
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10 changes: 9 additions & 1 deletion src/libc/include/stdio.h
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Expand Up @@ -113,6 +113,12 @@ int asprintf(char **__restrict p_buffer, const char *__restrict format, ...)
int vasprintf(char **__restrict p_buffer, const char *__restrict format, va_list va)
__attribute__((format(__printf__, 2, 0))) __attribute__((nonnull(1)));

int sscanf(const char *__restrict buffer, const char *__restrict format, ...)
__attribute__((format(__scanf__, 2, 3)));

int vsscanf(const char *__restrict buffer, const char *__restrict format, va_list va)
__attribute__((format(__scanf__, 2, 0)));

void perror(const char *str);

__END_DECLS
Expand All @@ -121,7 +127,7 @@ __END_DECLS
namespace std {
using ::size_t;
using ::FILE;

using ::fopen;
using ::fclose;
using ::fflush;
Expand Down Expand Up @@ -151,6 +157,8 @@ namespace std {
using ::vfprintf;
using ::asprintf;
using ::vasprintf;
using ::sscanf;
using ::vsscanf;
using ::perror;
} /* namespace std */
#endif /* __cplusplus */
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