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Standard C Libraries with Math Functions 2004 Microchip Technology Inc. DS51456B-page 213 4.8 LOCALIZATION This compiler defaults to the C locale and does not support any other locales; therefore it does not support the header file locale.h. The following would normally be found in this file: • struct lconv • NULL •LC_ALL • LC_COLLATE • LC_CTYPE • LC_MONETARY • LC_NUMERIC • LC_TIME • localeconv • setlocale UCHAR_MAX Description: Maximum value of an unsigned char Include: Value: 255 UINT_MAX Description: Maximum value of an unsigned int Include: Value: 65535 ULLONG_MAX Description: Maximum value of a long long unsigned int Include: Value: 18446744073709551615 ULONG_MAX Description: Maximum value of a long unsigned int Include: Value: 4294967295 USHRT_MAX Description: Maximum value of an unsigned short int Include: Value: 65535 dsPIC ® int main (void) { nâng cao (SIGABRT); printf ("Chương trình không bao giờ đạt ở đây."); } Đầu ra: ABRT Giải thích: ABRT viết tắt của "hủy bỏ". SIGFPE Mô tả: Tín hiệu báo lỗi dấu chấm động như phân chia cho số không hoặc kết quả của phạm vi. Bao gồm: Prototype: # define SIGFPE Bình luận: SIGFPEis sử dụng như một tham số cho raiseand / hoặc tín hiệu. Kh được sử dụng, hành vi mặc định là in một thông báo lỗi số học và chấm dứt chương trình gọi điện thoại. Điều này có thể được ghi đè bởi một người dùng chức năng xác định các hành động xử lý tín hiệu. Xem signalfor một ví dụ về một người dùng xác định chức năng. Ví dụ: # include / * Cho tăng lương, SIGFPE * / # include / * Cho printf * / int main (void) { nâng cao (SIGFPE); printf ("Chương trình không bao giờ đạt ở đây"); } Đầu ra: FPE Giải thích: FPE là viết tắt của "dấu chấm động lỗi". Thư viện chuẩn C với hàm toán học 2004 Microchip Technology Inc DS51456B trang 217 SIGILL Mô tả: Tín hiệu lệnh bất hợp pháp. Bao gồm: Prototype: # define SIGILL Bình luận: SIGILLis sử dụng như một tham số cho raiseand / hoặc tín hiệu. Khi được sử dụng, hành vi mặc định là in một mã thực thi không hợp lệ thông báo và chấm dứt chương trình gọi điện thoại. Điều này có thể được ghi đ
Language Tools Libraries DS51456B-page 214 2004 Microchip Technology Inc. 4.9 NON-LOCAL JUMPS The header file setjmp.hconsists of a type, a macro anda function that allow control transfers to occur that bypass the normal function call and return process. jmp_buf Description: A type that is an array used by setjmpand longjmpto save and restore the program environment. Include: Prototype: typedef int jmp_buf[_NSETJMP]; Remarks: _NSETJMPis defined as 16 + 2 that represents 16 registers and a 32-bit return address. setjmp Description: A macro that saves the current state of the program for later use by longjmp. Include: Prototype: #define setjmp(jmp_buf env) Argument: env variable where environment is stored Return Value: If the return is from a direct call, setjmpreturns zero. If the return is from a call to longjmp, setjmpreturns a non-zero value. Note:If the argument valfrom longjmpis 0, setjmpreturns 1. Example: See longjmp. longjmp Description: A function that restores the environment saved by setjmp. Include: Prototype: void longjmp(jmp_buf env, int val); Arguments: env variable where environment is stored val value to be returned to setjmp call. Remarks: The value parameter valshould be non-zero. If longjmpis invoked from a nested signal handler (that is, invoked as a result of a signal raised during the handling of another signal), the behavior is undefined. Standard C Libraries with Math Functions 2004 Microchip Technology Inc. DS51456B-page 215 4.10 SIGNAL HANDLING The header file signal.hconsists of a type, several macros and two functions that specify how the program handles signals while it is executing. A signal is a condition that may be reported during the program execution. Signals are synchronous, occurring under software control via the raisefunction. bởi một chức năng người dùng định nghĩa các hành động xử lý tín hiệu. Xem signalfor một ví dụ về một người dùng xác định chức năng. Ví dụ: # include / * Forraise, SIGILL * / # include / * Cho printf * / int main (void) { nâng cao (SIGILL); printf ("Chương trình không bao giờ đạt ở đây"); } Đầu ra: ILL Giải thích: ILL là viết tắt của "hướng dẫn bất hợp pháp". SIGINT Mô tả: tín hiệu ngắt. Bao gồm: Prototype: # define SIGINT Bình luận: SIGINTis sử dụng như một tham số cho raiseand / hoặc tín hiệu. Kh được sử dụng, hành vi mặc định là in một thông bị gián đoạn và chấm dứt chương trình gọi điện thoại. Thismay được ghi đè bởi một người dùng chức năng xác định các hành động xử lý tín hiệu. Xem signalfor một ví dụ về một người dùng xác định chức năng. Ví dụ: # include / * Forraise, SIGINT * / # include / * Cho printf * / int main (void) { nâng cao (SIGINT); printf ("Chương trình không bao giờ đạt ở đây."); } Đầu ra: INT Giải thích: INT là viết tắt của "gián đoạn". dsPIC ® Thư viện Công cụ Ngôn ngữ DS51456B trang 218 SIGSEGV 2004 Microchip Technology Inc
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2004 Microchip Technology Inc. DS51
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dsPIC ®LANGUAGE TOOLS LIBRARIES 20
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215 4.11 variable argument lists .
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and macros for standard C operation
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This documentation is provided on t
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• Development Systems Information
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data section. The alternate startup
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specific libraries.) When compiling
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esults will occur when the function
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A batch file named makedsplib.batis
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-15 or smaller than -1.0. Analogous
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CORCON saved, used, restored DOand
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fractional* srcV ); Arguments: numE
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VectorCorrelateis 4 less than whate
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less than or equal to any previous
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Remarks: The negated value of 0x800
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Cycles (including C-function call a
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plus program words from VectorCopy
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Prototype: extern fractional* Black
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); Arguments: numElems number of el
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the base address of the matrix. Bec
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in default RAM memory space (X-Data
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0 ≤i < numRows1 0 ≤j < numCols2
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20 + 3(numRows*numCols) MatrixSubtr
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(of the same dimension) whose eleme
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history of the filter. After perfor
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Oppenheim and Ronald Schafer’s Di
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modulo buffer. Source samples, x[n]
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FIRDelayInit Description: FIRDelayI
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filter. Include: dsp.h Prototype: e
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FIRStruct* filter, fractional* refS
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energyEstimate estimated energy val
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fractional* delayBase ); Arguments:
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Source File: iircan.asm DSP Library
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srcSamps pointer to source samples
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} IIRTransposedStruct; extern fract
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no REPEATinstructions Program words
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Language Tools Libraries DS51456B-p
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for instance if: a = Op1 (b, c), wi
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and stores the results in the desti
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Description: DCTIPcomputes the Disc
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int log2N, fractcomplex* dstCV, fra
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fractcomplex* srcCV, fractcomplex*
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value can be calculated using the i
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A complex vector of size N/2 must h
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specific libraries. When compiling
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Control I/O pin definitions RW_PIN
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y calling the BusyXLCD()function. T
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COM1_COM16 COM16_COM1 Display On/Of
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Source File: CAN1AbortAll.c CAN2Abo
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char CAN2IsRXPassive(void); Argumen
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CAN2SendMessage Description: This f
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CAN2SetMask Description: This funct
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CAN_IDLE_CON_NO_WAITCAN On in Idle
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CAN_INDI_INVMESS_DIS CAN_INDI_WAK_D
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{ /* Length of data tobe transmitte
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Return Value: If the value of DONE
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dsPIC Peripheral Libraries 2004 Mic
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..... SKIP_SCAN_AN15 Return Value:
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DS51456B-page 100 3.5.2 Individual
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3.6 ADC10 FUNCTIONS This section co
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Module On/Off ADC_MODULE_ON ADC_MOD
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ADPCFG register as defined below: E
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ADC_CHX_NEG_SAMPLEB_AN6AN7AN8 ADC_C
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Scanselect = SKIP_SCAN_AN2 & SKIP_S
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dsPIC ® Language Tools Libraries D
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void OpenTimer4(unsigned int config
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Tx_SOURCE_EXT Tx_SOURCE_INT period
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3.7.2 Individual Macros WriteTimer2
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SetPriorityIntT4 SetPriorityIntT5 D
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Code Example: char reset_state; res
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Arguments: None Remarks: This macro
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stored into CNPU2 register. The upp
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SetPriorityInt2 SetPriorityInt3 Set
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IC_INT_PRIOR_3 IC_INT_PRIOR_4 IC_IN
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ReadCapture3 ReadCapture4 ReadCaptu
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void CloseOC4(void); void CloseOC5(
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Include: outcompare.h Prototype: vo
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Include: outcompare.h Prototype: un
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SetDCOC3PWM SetDCOC4PWM SetDCOC5PWM
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Code Example: pulse_start = 0x40 ;
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T3CON = 0x8000; T1CON = 0X8000; /*
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Transmit Interrupt Priority UART_TX
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UART_1STOPBIT config2 This contains
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Source File: WriteUART1.c WriteUART
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Code Example: EnableIntU2TX; Disabl
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ConfigIntUART1(UART_RX_INT_EN & UAR
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DCI_INT_PRI_4 DCI_INT_PRI_5 DCI_INT
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DCI_FRAME_LEN_15 DCI_FRAME_LEN_14 .
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Prototype: unsigned int ReadDCI(uns
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contents are sent duringthe timeslo
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SPI_INT_PRI_4 SPI_INT_PRI_5 SPI_INT
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Prototype: void WriteSPI1(unsigned
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Remarks: This functions initializes
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2004 Microchip Technology Inc. DS51
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SEC_PRESCAL_7_1 & PRI_PRESCAL_64_1;
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enables/disables the interrupt. Sou
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QEI_QE_CLK_DIVIDE_1_32 QEI_QE_CLK_D
Page 203 and 204: } int main(void) { unsigned int max
Page 205 and 206: dsPIC ® Language Tools Libraries D
Page 207 and 208: PWM_PEN2H PWM_PDIS2H PWM_PEN1H PWM_
Page 209 and 210: PWM_POUT_1L Bit defines related to
Page 211 and 212: PWM_DTS3I_UA PWM_DTS3I_UB Dead Time
Page 213 and 214: PWM_OVA3H_INACTIVE PWM_OVA2H_INACTI
Page 215 and 216: Language Tools Libraries DS51456B-p
Page 217 and 218: #include #include void __attribute
Page 219 and 220: Prototype: void ConfigIntI2C(unsign
Page 221 and 222: Arguments: None Return Value None R
Page 223 and 224: a #definestatement in the i2c.h Sou
Page 225 and 226: I2C_IDLE_CON SCL Release Control bi
Page 227 and 228: i2c_data_wait This is the timeout c
Page 229 and 230: 3.17.2 Individual Macros StartI2C D
Page 231 and 232: Arguments: None Remarks: This macro
Page 233 and 234: • src\libm- source code for math
Page 235 and 236: Remarks: The expression evaluates t
Page 237 and 238: if (isalpha(ch)) printf("# is alpha
Page 239 and 240: Remarks: A character is considered
Page 241 and 242: ch = '&'; if (isprint(ch)) printf("
Page 243 and 244: Language Tools Libraries DS51456B-p
Page 245 and 246: int ch; ch = 'B'; printf("B changes
Page 249 and 250: DBL_MIN_10_EXP Description: Minimum
Page 251 and 252: Include: Value: 1 Remarks: Rounds
Page 253: Description: Maximum value of a lon
Page 257 and 258: abort - terminating See the example
Page 261 and 262: } Output: Illegal instruction execu
Page 263 and 264: must be at least one named argument
Page 265 and 266: Include: Prototype: #define va_end
Page 267 and 268: to perform input and output operati
Page 269 and 270: _IOLBF Description: Indicates line
Page 271 and 272: Include: Prototype: void clearerr(
Page 273 and 274: Include: Prototype: int feof(FILE
Page 275 and 276: Error indicator reset Standard C Li
Page 277 and 278: fpos_t pos; char buf[25]; if ((myfi
Page 279 and 280: Description: Opens a file. Include:
Page 281 and 282: Explanation: afile1must exist befor
Page 283 and 284: Arguments: s string to be written s
Page 285 and 286: 10.0/2 = 5.000000 10.0/3 = 3.333333
Page 287 and 288: Explanation: This program uses myfi
Page 289 and 290: SEEK_CUR- seeks from the current po
Page 291 and 292: *pos if successful; otherwise, fset
Page 293 and 294: if ((myfile = fopen("afile.out", "r
Page 295 and 296: 10.0/2 = 5.000000 10.0/3 = 3.333333
Page 297 and 298: Return Value: Returns the character
Page 299 and 300: Standard C Libraries with Math Func
Page 301 and 302: e, E doublein scientific notation f
Page 303 and 304: putchar Description: Put a characte
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Output: File renamed dsPIC ® Langu
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® Language Tools Libraries DS51456
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setbuf(myfile1, NULL); printf("myfi
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int main(void) { char sbuf[100], s[
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Include: Prototype: char *tmpnam(c
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ungetc (Continued) Standard C Libra
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va_list ap; va_start(ap, fmt); prin
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with operands of type long. Include
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i = -2; printf("The absolute value
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(int) strtol(s,0,10)except it does
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eturn 0; else return 1; } Output: S
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printf("For div(%d, %d)\n", x, y);
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free Description: Frees memory. Inc
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printf("The absolute value of %7ld
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is undefined. malloc Description: A
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with the key Remarks: qsortoverwrit
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object. If reallocsucceeds in alloc
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optional whitespace, followed by an
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® Language Tools Libraries DS51456
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Prototype: size_t wcstombs(char *s,
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characters in s2and returns a value
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printf("\n"); memcpy(buf1, buf3, 5)
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printf("\n"); printf("memset(\"%s\"
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printf("buf1 : %s\n\n", buf1); ptr
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uf3 : Why? buf2 comes before buf1 b
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str1, str2, res); res = strcspn(str
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(string length = 11 characters) str
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s2 second string n number of charac
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printf("buf1 : %s\n", buf1); printf
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contained in s2. Example: #include
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else printf("%c not found\n", ch2);
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printf("\"%s\" found at position %d
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Output: str1 : Here, on top of the
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MMMis month of the year ddis day of
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printf("Local time = %s\n", asctime
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Example: #include /* for strftime,
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(in magnitude) to be represented in
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Argument: x value between -1 and 1
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y = atan (x); printf("The arctangen
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if (errno) perror("Error"); printf(
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for (i=0; i
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} Output: The cosine of -1.000000 i
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Error: range error The hyperbolic c
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errno = 0; x = -1E3; y = exp (x); i
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y = fabs (x); printf("The absolute
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-2.0F, -1.75F, -1.5F, -1.25F}; floa
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x, y, z); errno = 0; x = 7.0; y = 0
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perror("Error"); printf("For fmodf
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Return Value: Returns the fraction,
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printf("For a number = %fand an exp
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ldexpf(-0.625000, 2) = -2.500000 Fo
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x, y); errno = 0; x = 0.0; y = log1
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NaN is returned if xis a negative n
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Arguments: x single precision float
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The sine of -1.000000 is -0.841471
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The hyperbolic sine of 0.000000 is
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Error: domain error The square root
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Return Value: Returns the tangent o
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x, y); } Output: The hyperbolic tan
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the calling process's data segment.
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eginning of the file. A return valu
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through the simulator. The return v
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uffer points to the storage locatio
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div.sd __builtin_divud Description:
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mul.uu dsPIC ® Language Tools Libr
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Return Value: Returns the psv page
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__builtin_mulus ...................
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arcsine Double Floating Point......
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Set Priority Macro.................
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isxdigit...........................
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String to Unsigned LongInteger ....
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DCT................................
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EnableIntlCx.......................
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Single Floating Point .............
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DBL_MAX_10_EXP ....................
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Single Floating Point..............
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tanhf .............................
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Set Capture Interrupt Priority ....
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ldiv_t ............................
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long long unsigned int Maximum Valu
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MatrixInvert ......................
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Single Floating Point..............
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system.............................
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Quick Sort ........................
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SEEK_SET...........................
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Minimum Value .....................
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va_arg ............................
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atoi ..............................
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strncpy ...........................
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Write..............................
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unsigned short int Maximum Value ..
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Zero, divide by....................
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