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Comment: Completed the table, except for Annex K

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APIDescriptionVersion Link
Format specifier type fieldc, s, and z are not ANSI compatible; F unsupported2012MSDN
Format specifier size fieldII32 and I64 are MSVC-specific; hw and l are not ANSI compatible; hh, jz and t unsupported2012MSDN
<complex.h>Absent; __STDC_NO_COMPLEX__ is defined2012  
isblank()Absent2012  
<fenv.h>Absent2012  
<inttypes.h>Absent2012  

float_t, double_t, HUGE_VALF,
HUGE_VALL, INFINITY, NAN

Absent 2012  
#pragma FP_CONTRACTSpelled fp_contract instead of FP_CONTRACT2012 MSDN
fpclassify()Absent, use _fpclass() instead2012 MSDN
isfinite(), isinf()Absent, use _finite() or _finitef()instead2012 MSDN
isnan()Absent, use _isnan() or _isnanf() instead2012MSDN
isnormal()Absent, use _fpclass() instead 2012MSDN
signbit()Absent 2012  
acosh(), asinh(), atanh()Absent2012  
exp2(), expm1(), ilogb(), log1p(),
log2()
Absent2012  
scalbn()Absent; use _scalb() (or _scalbf() on x64 targets only) instead 2012 MSDN
cbrt()Absent 2012  
erf(), erfc(), lgamma(), tgamma()Absent2012 
nearbyint(), rint(), lrint(),
round(), lround(), trunk()
Absent 2012 
remainder(), remquo()Absent2012  
copysign()Absent; use _copysign() instead 2012 MSDN
nan(), nexttoward()Absent 2012  
nextafter()Absent; use _nextafter() or _nextafterf() instead 2012 MSDN
fdim()fmax(), fmin()Absent 2012  
fma()Absent 2012 
isgreater(), isgreaterequal(),
isless(), islessequal(),
isunordered()
Absent 2012  
<stdalign.h>Absent   
va_copy()Absent 2012  
<stdatomic.h>Absent 2012  
<stdbool.h>Absent; _Bool is not supported in /TC mode, but bool is supported in /TP mode2012 MSDN
max_align_tAbsent 2012  
Printing format specifier type fieldS is MSVC-specific; c, s, and z are not ANSI compatible; F is unsupported2012MSDN
Printing format specifier size fieldII32 and I64 are MSVC-specific; hw and l are not ANSI compatible; hh, jz and t unsupported2012MSDN
Scanning format specifier type fieldS is MSVC-specific; c and s are not ANSI compatible; p is unsupported2012 MSDN
Scanning format specifier size fieldI64 is MSVC-specific; h, l, and L prefixes are not ANSI compatible; hh, j, z, and t are unsupported2012 MSDN 
snprintf()Absent; use _snprintf() instead 2012MSDN 
vfscanf(), vscanf(), vsscanf()Absent 2012  
atoll()Absent; use _atoi64() instead 2012 MSDN 
strtof(), strtold()Absent 2012 
strtoll()Absent; use _strtoi64() instead 2012 MSDN 
strtoull()Absent; use _strtoui64() instead 2012 MSDN 
aligned_alloc()Absent; use _aligned_malloc() instead (be aware, the parameter order is reversed)2012 MSDN 
at_quick_exit(), quick_exit()Absent 2012  
_Exit()Absent; use _exit() instead2012MSDN 
<stdnoreturn.h>Absent; use __declspec(noreturn) instead 2012 MSDN 
<tgmath.h>Absent 2012  
<threads.h>Absent2012  
TIME_UTC, struct timespec,
timespec_get()
Absent2012  
strftime(), wcsftime()z is not ANSI compatible; C, D, e, F, gG, h, n, r, R, tT, uV unsupported2012MSDN 
<uchar.h>Absent 2012  
vfwscanf(), vswscanf(), vwscanf()Absent2012  
fwide()Unsupported 2012 MSDN 
wcstof(), wcstold()Absent 2012  
wcstoll()Absent; use _wcstoi64() instead 2012 MSDN
wcstoull()Absent; use _wcstoui64() instead2012 MSDN 
iswblank()Absent 2012  
FLT_EVAL_METHOD, *_HAS_SUBNORM,
*_DECIMAL_DIG, *_TRUE_MIN
Absent 2012