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 30552-d1d0643eee) Lines: 1467 1530 95.9 % Date: 2025-11-24 09:22:36 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296423
RgX_gtofp_bit	7032001
RgX_normalize1	35901
X2XP1	5990717
ZX_Uspensky	1313838
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48653
ZX_rescale2prim	2233927
ZX_sturm	6395
ZX_sturm_i	123172
ZX_sturm_irred	116777
ZX_sturmpart	1128194
ZX_to_ZiX	16459296
ZiX_sqr	99037612
_gen_nored	11200954
_gen_one	14473214
_gen_zero	326146
_intervalcmp	0
_mp_add	24660228
_mp_cmul	34762992
_mp_mul	4374504
_mp_sqr	6298373
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537236
abs_update	8005677
abs_update_r	778701
all_roots	536139
append_clone	1614241
bkeval_single_power	5235542
check_ab	1178821
checkbound	2354770
checkvalidpol	267060
clean_roots	536175
cleanroots	231763
cmp_complex_appr	2238604
conformal_basecase	1403958
conformal_mapping	467947
conformal_pol	1404077
dblexp	6549462
dbllog2	302087368
dft	502392
dual_modulus	1012510
eval_rel_pol	13139036
fft	14160068
fft2	7462
findpower	40957838
fix_roots	537230
fix_roots1	398473
fujiwara_bound	2271757
fujiwara_bound_real	1406870
graeffe	49508768
homothetie	1610186
homothetie2n	9958345
homothetie_gauss	36499222
ind_maxlog2	902703
initdft	996395
isexactpol	239753
isexactscalar	931714
isreal	961952
isvalidcoeff	1230235
logmax_modulus	4451154
logmin_modulus	1614876
logmodulus	606791
logpre_modulus	606795
logradius	493997
lower_bound	40956319
mydbllog2i	226424971
mydbllog2r	56185050
mydbllogr	9547291
mygprec	63761570
mygprec_absolute	4340129
mygprec_special	537240
mygprecrc	215208397
mygprecrc_special	2179252
myshiftic	135808770
myshiftrc	35509409
newton_polygon	5507493
optimize_split	494004
parameters	494003
pol_to_gaussint	17590153
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166719
quicktofp	6979203
realroots	50627
refine_F	502389
refine_H	2460632
root_error	1912637
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289614
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494366
split_0_1	468313
split_0_2	468314
split_1	467949
split_2	494004
split_complete	1525956
split_fromU	494003
split_pols	166724
splitcauchy	166732
splitpoleval	5235780
tocomplex	1214015
update_radius	494003
usp	1126083

Generated by: LCOV version 1.16