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Cx51 User's Guide
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Routines By Category
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Data Conversion Routines
Intrinsic Routines
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Miscellaneous Routines
Include Files
SFR Definitions
80c517.h
absacc.h
assert.h
ctype.h
float.h
intrins.h
limits.h
math.h
rtx51tny.h
setjmp.h
stdarg.h
stddef.h
stdio.h
stdlib.h
string.h
Reference
_chkfloat_
_crol_
_cror_
_getkey
_irol_
_iror_
_lrol_
_lror_
_nop_
_pop_
_push_
_testbit_
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abs
acos
acos517
asin
asin517
assert
atan
atan2
atan517
atof
atof517
atoi
atol
cabs
calloc
ceil
cos
cos517
cosh
exp
exp517
fabs
floor
fmod
free
getchar
gets
init_mempool
isalnum
isalpha
iscntrl
isdigit
isgraph
islower
isprint
ispunct
isspace
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labs
log
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log10517
log517
longjmp
malloc
memccpy
memchr
memcmp
memcpy
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memset
modf
offsetof
pow
printf
printf517
putchar
puts
rand
realloc
scanf
scanf517
setjmp
sin
sin517
sinh
sprintf
sprintf517
sqrt
sqrt517
srand
sscanf
sscanf517
strcat
strchr
strcmp
strcpy
strcspn
strlen
strncat
strncmp
strncpy
strpbrk
strpos
strrchr
strrpbrk
strrpos
strspn
strstr
strtod
strtod517
strtok
strtol
strtoul
switchbank
tan
tan517
tanh
toascii
toint
tolower
toupper
ungetchar
va_arg
va_end
va_start
vprintf
vsprintf
Appendix
Cx51 User's Guide
Data Conversion Routines
| Routine | Attributes | Description |
|---|---|---|
| abs | reentrant | Generates the absolute value of an integer type. |
| atof | Converts a string to a float. | |
| atof517 | Converts a string to a float. | |
| atoi | Converts a string to an int. | |
| atol | Converts a string to a long. | |
| cabs | reentrant | Generates the absolute value of a character type. |
| labs | reentrant | Generates the absolute value of a long type. |
| strtod | Converts a string to a float. | |
| strtod517 | Converts a string to a float. | |
| strtol | Converts a string to a long. | |
| strtoul | Converts a string to an unsigned long. |
The data conversion routines convert strings of ASCII characters to numbers. All of these routines are implemented as functions and most are prototyped in stdlib.h. The abs, cabs, and labs functions are prototyped in math.h. The atof517 and strtod517 functions are prototyped in 80c517.h.
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