"I am a person who works hard and plays hard."

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Yuan Wei
Second Year Graduate Student Department of Computer Science
University of Virginia Charlottesville, VA 22903
Email: yw3f@cs.virginia.edu

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Source Code Analysis
         

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test-printf.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for alpha/src/test-printf.c:

Go to the source code of this file.

Defines

• #define DEC   -123
• #define INT   255
• #define UNS   (~0)
• #define FORMAT   "|%12.4f|%12.4e|%12.4g|\n"

Functions

• double FooBar (int a)
• double FooFoo (int a)
• void fmtchk (char *fmt)
• void fmtst1chk (char *fmt)
• void fmtst2chk (char *fmt)
• void fp_test (void)
• int main (void)

Variables

• struct {
  •    int    a
  •    double    b
  •    double    c
  •    char    d
• } xxyyz [100]
• int zzz
• double uxxe [100]
• char * sccsid = "this is a test..."

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Define Documentation

#define DEC   -123

Definition at line 98 of file alpha/src/test-printf.c. Referenced by fp_test().

#define FORMAT   "|%12.4f|%12.4e|%12.4g|\n"

#define INT   255

Definition at line 99 of file alpha/src/test-printf.c. Referenced by fp_test().

#define UNS   (~0)

Definition at line 100 of file alpha/src/test-printf.c. Referenced by fp_test().

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Function Documentation

void fmtchk (  char *    fmt )

Definition at line 57 of file alpha/src/test-printf.c. References sccsid. { static char *sccsid = "this is a test..."; (void) fputs(fmt, stdout); (void) printf(":\t`"); (void) printf(fmt, 0x12); (void) printf("'\n"); }

void fmtst1chk (  char *    fmt )

Definition at line 67 of file alpha/src/test-printf.c. { (void) fputs(fmt, stdout); (void) printf(":\t`"); (void) printf(fmt, 4, 0x12); (void) printf("'\n"); }

void fmtst2chk (  char *    fmt )

Definition at line 76 of file alpha/src/test-printf.c. { (void) fputs(fmt, stdout); (void) printf(":\t`"); (void) printf(fmt, 4, 4, 0x12); (void) printf("'\n"); }

double FooBar (  int    a )

Definition at line 40 of file alpha/src/test-printf.c. References a, and xxyyz. { return xxyyz[a].b; }

double FooFoo (  int    a )

Definition at line 48 of file alpha/src/test-printf.c. References a, uxxe, and zzz. { zzz++; return uxxe[a]; }

void fp_test (  void    )

Definition at line 108 of file alpha/src/test-printf.c. References DEC, INT, and UNS. { int i, j, k, l; char buf[7]; char *prefix = buf; char tp[20]; puts("\nFormatted output test"); printf("prefix 6d 6o 6x 6X 6u\n"); strcpy(prefix, "%"); for (i = 0; i < 2; i++) { for (j = 0; j < 2; j++) { for (k = 0; k < 2; k++) { for (l = 0; l < 2; l++) { strcpy(prefix, "%"); if (i == 0) strcat(prefix, "-"); if (j == 0) strcat(prefix, "+"); if (k == 0) strcat(prefix, "#"); if (l == 0) strcat(prefix, "0"); printf("%5s |", prefix); strcpy(tp, prefix); strcat(tp, "6d |"); printf(tp, DEC); strcpy(tp, prefix); strcat(tp, "6o |"); printf(tp, INT); strcpy(tp, prefix); strcat(tp, "6x |"); printf(tp, INT); strcpy(tp, prefix); strcat(tp, "6X |"); printf(tp, INT); strcpy(tp, prefix); strcat(tp, "6u |"); printf(tp, UNS); printf("\n"); } } } } printf("%10s\n", (char *) NULL); printf("%-10s\n", (char *) NULL); }

int main (  void    )

Definition at line 153 of file alpha/src/test-printf.c. References d, fmtchk(), fmtst1chk(), fmtst2chk(), and fp_test(). { static char shortstr[] = "Hi, Z."; static char longstr[] = "Good morning, Doctor Chandra. This is Hal. \ I am ready for my first lesson today."; fmtchk("%.4x"); fmtchk("%04x"); fmtchk("%4.4x"); fmtchk("%04.4x"); fmtchk("%4.3x"); fmtchk("%04.3x"); fmtst1chk("%.*x"); fmtst1chk("%0*x"); fmtst2chk("%*.*x"); fmtst2chk("%0*.*x"); #ifndef BSD printf("bad format:\t\"%z\"\n"); printf("nil pointer (padded):\t\"%10p\"\n", (void *) NULL); #endif printf("decimal negative:\t\"%d\"\n", -2345); printf("octal negative:\t\"%o\"\n", -2345); printf("hex negative:\t\"%x\"\n", -2345); printf("long decimal number:\t\"%ld\"\n", -123456); printf("long octal negative:\t\"%lo\"\n", -2345L); printf("long unsigned decimal number:\t\"%lu\"\n", -123456); printf("zero-padded LDN:\t\"%010ld\"\n", -123456); printf("left-adjusted ZLDN:\t\"%-010ld\"\n", -123456); printf("space-padded LDN:\t\"%10ld\"\n", -123456); printf("left-adjusted SLDN:\t\"%-10ld\"\n", -123456); printf("zero-padded string:\t\"%010s\"\n", shortstr); printf("left-adjusted Z string:\t\"%-010s\"\n", shortstr); printf("space-padded string:\t\"%10s\"\n", shortstr); printf("left-adjusted S string:\t\"%-10s\"\n", shortstr); printf("null string:\t\"%s\"\n", (char *)NULL); #if 0 printf("limited string:\t\"%.22s\"\n", longstr); #endif printf("e-style >= 1:\t\"%e\"\n", 12.34); printf("e-style >= .1:\t\"%e\"\n", 0.1234); printf("e-style < .1:\t\"%e\"\n", 0.001234); printf("e-style big:\t\"%.60e\"\n", 1e20); printf ("e-style == .1:\t\"%e\"\n", 0.1); printf("f-style >= 1:\t\"%f\"\n", 12.34); printf("f-style >= .1:\t\"%f\"\n", 0.1234); printf("f-style < .1:\t\"%f\"\n", 0.001234); printf("g-style >= 1:\t\"%g\"\n", 12.34); printf("g-style >= .1:\t\"%g\"\n", 0.1234); printf("g-style < .1:\t\"%g\"\n", 0.001234); printf("g-style big:\t\"%.60g\"\n", 1e20); { char buf[128]; sprintf(buf, "new test: %.15g", 99.85); printf(":%s:\n", buf); } printf (" %6.5lf\n", .099999999860301614); printf (" %6.5lf\n", .1); printf ("x%5.4lfx\n", .5); printf ("%#03x\n", 1); #if 0 /* XXX printf_fp still broken */ { double d = FLT_MIN; int niter = 17; while (niter-- != 0) printf ("%.17e\n", d / 2); fflush (stdout); } printf ("%15.5e\n", 4.9406564584124654e-324); #endif #define FORMAT "|%12.4f|%12.4e|%12.4g|\n" printf (FORMAT, 0.0, 0.0, 0.0); printf (FORMAT, 1.0, 1.0, 1.0); printf (FORMAT, -1.0, -1.0, -1.0); printf (FORMAT, 100.0, 100.0, 100.0); printf (FORMAT, 1000.0, 1000.0, 1000.0); printf (FORMAT, 10000.0, 10000.0, 10000.0); printf (FORMAT, 12345.0, 12345.0, 12345.0); printf (FORMAT, 100000.0, 100000.0, 100000.0); printf (FORMAT, 123456.0, 123456.0, 123456.0); #undef FORMAT #if 0 { char buf[20]; printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n", snprintf (buf, sizeof (buf), "%30s", "foo"), sizeof (buf), buf); } #endif fp_test (); fp_test (); fp_test (); fp_test (); fp_test (); fp_test (); fp_test (); fp_test (); printf ("%e should be 1.234568e+06\n", 1234567.8); printf ("%f should be 1234567.800000\n", 1234567.8); printf ("%g should be 1.23457e+06\n", 1234567.8); printf ("%g should be 123.456\n", 123.456); printf ("%g should be 1e+06\n", 1000000.0); printf ("%g should be 10\n", 10.0); printf ("%g should be 0.02\n", 0.02); { char buf[128]; sprintf(buf, "%#.*f", 4, (double)0.70000); printf("testing parametric fields: %s\n", buf); } return(0); }

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Variable Documentation

int a

Definition at line 31 of file alpha/src/test-printf.c. Referenced by FooBar(), and FooFoo().

double b

Definition at line 32 of file alpha/src/test-printf.c.

double c

Definition at line 33 of file alpha/src/test-printf.c.

char d

Definition at line 34 of file alpha/src/test-printf.c. Referenced by main().

char* sccsid = "this is a test..." [static]

Definition at line 54 of file alpha/src/test-printf.c. Referenced by fmtchk().

double uxxe[100]

Definition at line 45 of file alpha/src/test-printf.c. Referenced by FooFoo().

struct { ... } xxyyz[100]

Referenced by FooBar().

int zzz

Definition at line 37 of file alpha/src/test-printf.c. Referenced by FooFoo().

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