Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30540-a74e376001) Lines: 1467 1530 95.9 % Date: 2025-11-09 09:22:50 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22708
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116773
ZX_sturm_i	123168
split_pols	166721
splitcauchy	166723
polsolve	166724
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296413
_gen_zero	326140
fix_roots1	398466
split_1	467930
conformal_mapping	467931
split_0_1	468294
split_0_2	468294
logradius	493976
split_2	493976
update_radius	493977
parameters	493978
optimize_split	493980
split_fromU	493980
split_0	494339
refine_F	502359
dft	502367
all_roots	536126
clean_roots	536172
fix_roots	537219
a_posteriori_errors	537227
mygprec_special	537227
logmodulus	606754
logpre_modulus	606759
abs_update_r	778662
ind_maxlog2	902666
isexactscalar	931714
isreal	961910
initdft	996345
dual_modulus	1012459
usp	1126031
ZX_sturmpart	1128210
check_ab	1178837
tocomplex	1213969
isvalidcoeff	1230235
ZX_Uspensky	1313855
conformal_basecase	1403904
conformal_pol	1404025
fujiwara_bound_real	1406877
split_complete	1525904
homothetie	1610103
append_clone	1614172
logmin_modulus	1614779
root_error	1912580
mygprecrc_special	2179184
ZX_rescale2prim	2233729
cmp_complex_appr	2238535
fujiwara_bound	2271746
checkbound	2354803
refine_H	2460482
scalepol	4289438
mygprec_absolute	4339953
_mp_mul	4374506
logmax_modulus	4450946
splitpoleval	5235805
bkeval_single_power	5236013
newton_polygon	5507248
X2XP1	5990260
_mp_sqr	6298450
dblexp	6549130
quicktofp	6979056
RgX_gtofp_bit	7031616
abs_update	8005730
mydbllogr	9547210
homothetie2n	9957866
_gen_nored	11200801
eval_rel_pol	13138407
fft	14159428
_gen_one	14473753
ZX_to_ZiX	16459947
pol_to_gaussint	17589246
_mp_add	24660882
_mp_cmul	34763728
myshiftrc	35506808
homothetie_gauss	36497528
lower_bound	40956905
findpower	40958332
graeffe	49505519
mydbllog2r	56174062
mygprec	63759411
ZiX_sqr	99034036
myshiftic	135803738
mygprecrc	215200808
mydbllog2i	226442977
dbllog2	302106318

Generated by: LCOV version 1.16