therm Changeset - 91fbdc7bc1b8 · protofusion repositories

Changeset - 91fbdc7bc1b8

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Ethan Zonca - 10 years ago 2014-08-24 00:20:24
ez@ethanzonca.com

Moved itoa functions to stringhelpers

4 files changed with 81 insertions and 69 deletions:

Makefile

main.c

stringhelpers.c

stringhelpers.h

0 comments (0 inline, 0 general)

Makefile

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Show inline comments

@@ @@ -39,6 +39,7 @@ SRC+=stm32l1xx_it.c @@
 SRC+=system_stm32l1xx.c
 SRC+=stm32l100c_discovery.c
 SRC+=ssd1306.c
 SRC+=stringhelpers.c
 # Discovery Source Files
 #SRC+=stm32f4_discovery_lis302dl.c

main.c

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Show inline comments

@@ @@ -7,6 +7,7 @@ @@
 #include "usb_lib.h"
 #include "usb_desc.h"
 #include "usb_pwr.h"
 #include "stringhelpers.h"
 #define SSR_PERIOD 200
@@ @@ -46,75 +47,6 @@ enum state { @@
 };
 char* itoa(int16_t i, char b[]){
     char const digit[] = "0123456789";
     char* p = b;
     if(i<0){
         *p++ = '-';
         i *= -1;
+    }
     uint16_t shifter = i;
     do{ //Move to where representation ends
         ++p;
         shifter = shifter/10;
     }while(shifter);
     *p = '\0';
     do{ //Move back, inserting digits as you go
         *--p = digit[i%10];
         i = i/10;
     }while(i);
     return b;
+}
 char* itoa_fp(int16_t i, uint8_t frac, char b[]){
     char const digit[] = "0123456789";
     // set p to beginning of char array
     char* p = b;
     // If negative, set current char to '-' and inc, unnegate number
     if(i<0){
         *p++ = '-';
         i *= -1;
+    }
     // Init shifter to numeric value
     uint16_t shifter = i;
     uint16_t frac_shifter = frac;
     // Iterate through 10s places, incrementing text pointer as we go
     do{
         ++p;
         shifter = shifter/10;
     }while(shifter);
     ++p; // increment for decimal point
     do{
         ++p;
         frac_shifter = frac_shifter/10;
     }while(frac_shifter);
     // Null-terminate the string
     *p = '\0';
     // Go backwards and write out fractional digits
     do{
         *--p = digit[frac%10];
         frac = frac/10;
     }while(frac);
     *--p = '.'; // insert decimal point
     // Go backwards and write out remaining digits
     do{
         *--p = digit[i%10];
         i = i/10;
     }while(i);
     return b;
+}
 static __IO uint32_t TimingDelay;

stringhelpers.c

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Show inline comments

@@ new file 100644 @@
 #include <inttypes.h>
 char* itoa(int16_t i, char b[]){
     char const digit[] = "0123456789";
     char* p = b;
     if(i<0){
         *p++ = '-';
         i *= -1;
+    }
     uint16_t shifter = i;
     do{ //Move to where representation ends
         ++p;
         shifter = shifter/10;
     }while(shifter);
     *p = '\0';
     do{ //Move back, inserting digits as you go
         *--p = digit[i%10];
         i = i/10;
     }while(i);
     return b;
+}
 char* itoa_fp(int16_t i, uint8_t frac, char b[]){
     char const digit[] = "0123456789";
     // set p to beginning of char array
     char* p = b;
     // If negative, set current char to '-' and inc, unnegate number
     if(i<0){
         *p++ = '-';
         i *= -1;
+    }
     // Init shifter to numeric value
     uint16_t shifter = i;
     uint16_t frac_shifter = frac;
     // Iterate through 10s places, incrementing text pointer as we go
     do{
         ++p;
         shifter = shifter/10;
     }while(shifter);
     ++p; // increment for decimal point
     do{
         ++p;
         frac_shifter = frac_shifter/10;
     }while(frac_shifter);
     // Null-terminate the string
     *p = '\0';
     // Go backwards and write out fractional digits
     do{
         *--p = digit[frac%10];
         frac = frac/10;
     }while(frac);
     *--p = '.'; // insert decimal point
     // Go backwards and write out remaining digits
     do{
         *--p = digit[i%10];
         i = i/10;
     }while(i);
     return b;
+}

stringhelpers.h

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Show inline comments

@@ new file 100644 @@
 #ifndef STRINGHELPERS_H
 #define STRINGHELPERS_H
 char* itoa(int16_t i, char b[]);
 char* itoa_fp(int16_t i, uint8_t frac, char b[]);
 #endif

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