EWL C Reference Manual Document Number: CWEWLCREF Rev. 10.x, 02/2014 EWL C Reference Manual, Rev. 10.x, 02/2014 2 Freescale Semiconductor, Inc. Contents Section number Title Page Chapter 1 Introduction 1.1 ISO/IEC Standards........................................................................................................................................................19 1.2 Intrinsic Functions........................................................................................................................................................ 19 Chapter 2 Configuring EWL 2.1 Configuring Memory Management.............................................................................................................................. 21 2.2 Configuring Time and Date.......................................................................................................................................... 24 2.3 Configuring Input and Output.......................................................................................................................................26 2.3.1 Configuring File Input/Output....................................................................................................................... 26 2.3.2 Routines......................................................................................................................................................... 27 2.3.3 Configuring Console I/O................................................................................................................................28 2.4 Configuring Threads..................................................................................................................................................... 30 2.4.1 Pthread Functions...........................................................................................................................................31 2.5 Configuring Assertions................................................................................................................................................. 33 2.6 Configuring Complex Number Facilities......................................................................................................................33 2.7 Configuring C99 Features.............................................................................................................................................33 2.8 Configuring Locale Features.........................................................................................................................................33 2.9 Configuring Floating-Point Math Features...................................................................................................................34 2.10 Configuring the EWL Extras Library........................................................................................................................... 34 2.11 Configuring Wide-Character Facilities.........................................................................................................................35 2.12 Porting EWL to an Embedded OS................................................................................................................................35 Chapter 3 assert.h 3.1 Macros in assert.h......................................................................................................................................................... 39 3.1.1 assert()............................................................................................................................................................39 Chapter 4 complex.h EWL C Reference Manual, Rev. 10.x, 02/2014 Freescale Semiconductor, Inc. 3 Section number Title Page 4.1 Hyperbolic Trignomatry............................................................................................................................................... 41 4.1.1 cacos()............................................................................................................................................................ 41 4.1.2 cacosh().......................................................................................................................................................... 42 4.1.3 casin().............................................................................................................................................................43 4.1.4 casinh()...........................................................................................................................................................43 4.1.5 catan().............................................................................................................................................................44 4.1.6 catanh()...........................................................................................................................................................44 4.1.7 ccos()..............................................................................................................................................................45 4.1.8 ccosh()............................................................................................................................................................45 4.1.9 csin()...............................................................................................................................................................46 4.1.10 csinh().............................................................................................................................................................46 4.1.11 ctan().............................................................................................................................................................. 47 4.2 Exponent and Logarithms.............................................................................................................................................47 4.2.1 cexp()............................................................................................................................................................. 47 4.2.2 clog().............................................................................................................................................................. 48 4.3 Power and Absolute Values..........................................................................................................................................48 4.3.1 cabs()..............................................................................................................................................................49 4.3.2 cpow()............................................................................................................................................................ 49 4.3.3 csqrt()............................................................................................................................................................. 50 4.4 Manipulation.................................................................................................................................................................50 4.4.1 carg().............................................................................................................................................................. 51 4.4.2 cimag()........................................................................................................................................................... 51 4.4.3 conj().............................................................................................................................................................. 52 4.4.4 cproj().............................................................................................................................................................52 4.4.5 creal()............................................................................................................................................................. 53 Chapter 5 ctype.h 5.1 Macros in ctype.h..........................................................................................................................................................55 EWL C Reference Manual, Rev. 10.x, 02/2014 4 Freescale Semiconductor, Inc. Section number Title Page 5.1.1 isalnum(), isalpha(), isblank(), iscntrl(), isdigit(), isgraph(), islower(), isprint(), ispunct(), isspace(), isupper(), isxdigit().........................................................................................................................................55 5.1.2 tolower, toupper............................................................................................................................................. 57 Chapter 6 errno.h 6.1 errno()........................................................................................................................................................................... 59 Chapter 7 fenv.h 7.1 Data Types and Pragma for the Floating-Point Environment.......................................................................................61 7.1.1 fenv_t, fexecpt_t.............................................................................................................................................61 7.1.2 FENV_ACCESS............................................................................................................................................ 62 7.1.3 fegetenv()......................................................................................................................................................