diff options
Diffstat (limited to 'libgfortran/io/write.c')
| -rw-r--r-- | libgfortran/io/write.c | 105 |
1 files changed, 52 insertions, 53 deletions
diff --git a/libgfortran/io/write.c b/libgfortran/io/write.c index 67c769ae920..551e686b753 100644 --- a/libgfortran/io/write.c +++ b/libgfortran/io/write.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002-2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. Contributed by Andy Vaught This file is part of the GNU Fortran 95 runtime library (libgfortran). @@ -104,9 +104,8 @@ extract_real (const void *p, int len) } -/* calculate sign()-- Given a flag that indicate if a value is - * negative or not, return a sign_t that gives the sign that we need - * to produce. */ +/* Given a flag that indicate if a value is negative or not, return a + sign_t that gives the sign that we need to produce. */ static sign_t calculate_sign (int negative_flag) @@ -133,7 +132,7 @@ calculate_sign (int negative_flag) } -/* calculate_exp()-- returns the value of 10**d. */ +/* Returns the value of 10**d. */ static double calculate_exp (int d) @@ -150,8 +149,7 @@ calculate_exp (int d) } -/* calculate_G_format()-- geneate corresponding I/O format for - FMT_G output. +/* Generate corresponding I/O format for FMT_G output. The rules to translate FMT_G to FMT_E or FNT_F from DEC fortran LRM (table 11-2, Chapter 11, "I/O Formatting", P11-25) is: @@ -252,8 +250,7 @@ calculate_G_format (fnode *f, double value, int len, int *num_blank) } -/* output_float() -- output a real number according to its format - which is FMT_G free */ +/* Output a real number according to its format which is FMT_G free. */ static void output_float (fnode *f, double value, int len) @@ -275,17 +272,17 @@ output_float (fnode *f, double value, int len) int intval = 0, intlen = 0; int j; - /* EXP value for this number */ + /* EXP value for this number. */ neval = 0; - /* Width of EXP and it's sign*/ + /* Width of EXP and it's sign. */ nesign = 0; ft = f->format; w = f->u.real.w; d = f->u.real.d + 1; - /* Width of the EXP */ + /* Width of the EXP. */ e = 0; sca = g.scale_factor; @@ -295,7 +292,7 @@ output_float (fnode *f, double value, int len) if (n < 0) n = -n; - /* Width of the sign for the whole number */ + /* Width of the sign for the whole number. */ nsign = (sign == SIGN_NONE ? 0 : 1); digits = 0; @@ -312,8 +309,8 @@ output_float (fnode *f, double value, int len) minv = 0.1; maxv = 1.0; - /* Here calculate the new val of the number with consideration - of Globle Scale value */ + /* Calculate the new val of the number with consideration + of global scale value. */ while (sca > 0) { minv *= 10.0; @@ -323,7 +320,7 @@ output_float (fnode *f, double value, int len) neval --; } - /* Now calculate the new Exp value for this number */ + /* Now calculate the new Exp value for this number. */ sca = g.scale_factor; while(sca >= 1) { @@ -343,7 +340,7 @@ output_float (fnode *f, double value, int len) maxv = 10.0; } - /* OK, let's scale the number to appropriate range */ + /* OK, let's scale the number to appropriate range. */ while (scale_flag && n > 0.0 && n < minv) { if (n < minv) @@ -361,12 +358,11 @@ output_float (fnode *f, double value, int len) } } - /* It is time to process the EXP part of the number. - Value of 'nesign' is 0 unless following codes is executed. - */ + /* It is time to process the EXP part of the number. + Value of 'nesign' is 0 unless following codes is executed. */ if (ft != FMT_F) { - /* Sign of the EXP value */ + /* Sign of the EXP value. */ if (neval >= 0) esign = SIGN_PLUS; else @@ -375,7 +371,7 @@ output_float (fnode *f, double value, int len) neval = - neval ; } - /* Width of the EXP*/ + /* Width of the EXP. */ e_new = 0; j = neval; while (j > 0) @@ -386,15 +382,15 @@ output_float (fnode *f, double value, int len) if (e <= e_new) e = e_new; - /* Got the width of EXP */ + /* Got the width of EXP. */ if (e < digits) e = digits ; - /* Minimum value of the width would be 2 */ + /* Minimum value of the width would be 2. */ if (e < 2) e = 2; - nesign = 1 ; /* We must give a position for the 'exp_char' */ + nesign = 1 ; /* We must give a position for the 'exp_char' */ if (e > 0) nesign = e + nesign + (esign != SIGN_NONE ? 1 : 0); } @@ -424,7 +420,7 @@ output_float (fnode *f, double value, int len) nesign -= 1; nblank = w - (nsign + intlen + d + nesign); } - /* don't let a leading '0' cause field overflow */ + /* Don't let a leading '0' cause field overflow. */ if (nblank == -1 && ft == FMT_F && q[0] == '0') { q++; @@ -487,7 +483,7 @@ write_l (fnode * f, char *source, int len) { char *p; int64_t n; - + p = write_block (f->u.w); if (p == NULL) return; @@ -497,7 +493,7 @@ write_l (fnode * f, char *source, int len) p[f->u.w - 1] = (n) ? 'T' : 'F'; } -/* write_float() -- output a real number according to its format */ +/* Output a real number according to its format. */ static void write_float (fnode *f, const char *source, int len) @@ -562,7 +558,7 @@ write_float (fnode *f, const char *source, int len) p = write_block (nb); memset (p, ' ', nb); } - } + } } @@ -579,7 +575,7 @@ write_int (fnode *f, const char *source, int len, char *(*conv) (uint64_t)) n = extract_int (source, len); - /* Special case */ + /* Special case: */ if (m == 0 && n == 0) { @@ -606,7 +602,7 @@ write_int (fnode *f, const char *source, int len, char *(*conv) (uint64_t)) digits = strlen (q); /* Select a width if none was specified. The idea here is to always - * print something. */ + print something. */ if (w == 0) w = ((digits < m) ? m : digits); @@ -619,7 +615,7 @@ write_int (fnode *f, const char *source, int len, char *(*conv) (uint64_t)) if (digits < m) nzero = m - digits; - /* See if things will work */ + /* See if things will work. */ nblank = w - (nzero + digits); @@ -654,7 +650,7 @@ write_decimal (fnode *f, const char *source, int len, char *(*conv) (int64_t)) n = extract_int (source, len); - /* Special case */ + /* Special case: */ if (m == 0 && n == 0) { @@ -679,7 +675,7 @@ write_decimal (fnode *f, const char *source, int len, char *(*conv) (int64_t)) digits = strlen (q); /* Select a width if none was specified. The idea here is to always - * print something. */ + print something. */ if (w == 0) w = ((digits < m) ? m : digits) + nsign; @@ -692,7 +688,7 @@ write_decimal (fnode *f, const char *source, int len, char *(*conv) (int64_t)) if (digits < m) nzero = m - digits; - /* See if things will work */ + /* See if things will work. */ nblank = w - (nsign + nzero + digits); @@ -727,7 +723,7 @@ done: } -/* otoa()-- Convert unsigned octal to ascii */ +/* Convert unsigned octal to ascii. */ static char * otoa (uint64_t n) @@ -755,7 +751,7 @@ otoa (uint64_t n) } -/* btoa()-- Convert unsigned binary to ascii */ +/* Convert unsigned binary to ascii. */ static char * btoa (uint64_t n) @@ -816,6 +812,7 @@ write_z (fnode * f, const char *p, int len) void write_d (fnode *f, const char *p, int len) { + write_float (f, p, len); } @@ -823,6 +820,7 @@ write_d (fnode *f, const char *p, int len) void write_e (fnode *f, const char *p, int len) { + write_float (f, p, len); } @@ -830,6 +828,7 @@ write_e (fnode *f, const char *p, int len) void write_f (fnode *f, const char *p, int len) { + write_float (f, p, len); } @@ -837,6 +836,7 @@ write_f (fnode *f, const char *p, int len) void write_en (fnode *f, const char *p, int len) { + write_float (f, p, len); } @@ -844,11 +844,12 @@ write_en (fnode *f, const char *p, int len) void write_es (fnode *f, const char *p, int len) { + write_float (f, p, len); } -/* write_x()-- Take care of the X/TR descriptor */ +/* Take care of the X/TR descriptor. */ void write_x (fnode * f) @@ -863,11 +864,11 @@ write_x (fnode * f) } -/* List-directed writing */ +/* List-directed writing. */ -/* write_char()-- Write a single character to the output. Returns - * nonzero if something goes wrong. */ +/* Write a single character to the output. Returns nonzero if + something goes wrong. */ static int write_char (char c) @@ -884,7 +885,7 @@ write_char (char c) } -/* write_logical()-- Write a list-directed logical value */ +/* Write a list-directed logical value. */ static void write_logical (const char *source, int length) @@ -893,7 +894,7 @@ write_logical (const char *source, int length) } -/* write_integer()-- Write a list-directed integer value. */ +/* Write a list-directed integer value. */ static void write_integer (const char *source, int length) @@ -939,9 +940,8 @@ write_integer (const char *source, int length) } -/* write_character()-- Write a list-directed string. We have to worry - * about delimiting the strings if the file has been opened in that - * mode. */ +/* Write a list-directed string. We have to worry about delimiting + the strings if the file has been opened in that mode. */ static void write_character (const char *source, int length) @@ -995,8 +995,8 @@ write_character (const char *source, int length) } -/* Output the Real number with default format. - REAL(4) is 1PG14.7E2, and REAL(8) is 1PG23.15E3 */ +/* Output a real number with default format. + This is 1PG14.7E2 for REAL(4) and 1PG23.15E3 for REAL(8). */ static void write_real (const char *source, int length) @@ -1038,7 +1038,7 @@ write_complex (const char *source, int len) } -/* write_separator()-- Write the separator between items. */ +/* Write the separator between items. */ static void write_separator (void) @@ -1053,9 +1053,9 @@ write_separator (void) } -/* list_formatted_write()-- Write an item with list formatting. - * TODO: handle skipping to the next record correctly, particularly - * with strings. */ +/* Write an item with list formatting. + TODO: handle skipping to the next record correctly, particularly + with strings. */ void list_formatted_write (bt type, void *p, int len) @@ -1160,4 +1160,3 @@ namelist_write (void) write_character("/",1); } - |